{"user_id":1,"created_at":1789174585,"filename":"easyresult_question_import_test_50_Chemistry_Class11.csv","rows":[{"row_number":2,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"পরমাণুর গঠন","question_content":"রাদারফোর্ডের পরমাণু মডেল অনুযায়ী পরমাণুর অধিকাংশ স্থান কী?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"A","option_A":"ফাঁকা স্থান","option_B":"প্রোটন","option_C":"নিউট্রন","option_D":"ইলেকট্রন","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":3,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"নিউক্লিয়াস","question_content":"পরমাণুর নিউক্লিয়াসে প্রধানত কোন কণাগুলো থাকে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"B","option_A":"ইলেকট্রন ও প্রোটন","option_B":"প্রোটন ও নিউট্রন","option_C":"ইলেকট্রন ও নিউট্রন","option_D":"শুধু ইলেকট্রন","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":4,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"পারমাণবিক সংখ্যা","question_content":"কোনো মৌলের পারমাণবিক সংখ্যা কী নির্দেশ করে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"C","option_A":"নিউট্রনের সংখ্যা","option_B":"ভর সংখ্যা","option_C":"প্রোটনের সংখ্যা","option_D":"নিউক্লিয়নের সংখ্যা","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":5,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"ভর সংখ্যা","question_content":"ভর সংখ্যা সমান কোনটির?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"D","option_A":"শুধু প্রোটন সংখ্যা","option_B":"শুধু নিউট্রন সংখ্যা","option_C":"ইলেকট্রন ও প্রোটন সংখ্যা","option_D":"প্রোটন ও নিউট্রন সংখ্যার যোগফল","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":6,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"সমস্থানিক","question_content":"যেসব পরমাণুর পারমাণবিক সংখ্যা সমান কিন্তু ভর সংখ্যা ভিন্ন, তাদের কী বলে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"A","option_A":"সমস্থানিক","option_B":"সমভর","option_C":"সমনিউট্রন","option_D":"সমইলেকট্রন","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":7,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"বোর মডেল","question_content":"বোরের মডেল অনুযায়ী ইলেকট্রন কোথায় অবস্থান করে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"B","option_A":"যেকোনো স্থানে","option_B":"নির্দিষ্ট শক্তিস্তরে","option_C":"নিউক্লিয়াসের ভেতরে","option_D":"স্থির অবস্থায় নিউক্লিয়াসে","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":8,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"ইলেকট্রন বিন্যাস","question_content":"সোডিয়ামের পারমাণবিক সংখ্যা ১১ হলে এর ইলেকট্রন বিন্যাস কোনটি?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"C","option_A":"2,7,2","option_B":"2,8,2","option_C":"2,8,1","option_D":"2,9","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":9,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"অরবিটাল","question_content":"একটি s-অরবিটালে সর্বোচ্চ কতটি ইলেকট্রন থাকতে পারে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"D","option_A":"1","option_B":"3","option_C":"4","option_D":"2","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":10,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"পাউলির নীতি","question_content":"একটি অরবিটালে সর্বোচ্চ দুইটি ইলেকট্রনের স্পিন কেমন হয়?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"A","option_A":"বিপরীতমুখী","option_B":"একইমুখী","option_C":"শূন্য","option_D":"অনির্দিষ্ট","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":11,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"হাইজেনবার্গ নীতি","question_content":"হাইজেনবার্গের অনিশ্চয়তা নীতি মূলত কোন দুটি রাশির একসঙ্গে নির্ভুল নির্ণয়ের সীমাবদ্ধতা নিয়ে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"B","option_A":"ভর ও আয়তন","option_B":"অবস্থান ও ভরবেগ","option_C":"চার্জ ও ভর","option_D":"শক্তি ও চার্জ","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":12,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"আধুনিক পর্যায় সারণি","question_content":"আধুনিক পর্যায় সারণিতে মোট কয়টি পর্যায় আছে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"C","option_A":"6","option_B":"8","option_C":"7","option_D":"18","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":13,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"গ্রুপ","question_content":"আধুনিক পর্যায় সারণিতে মোট কয়টি গ্রুপ আছে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"D","option_A":"7","option_B":"8","option_C":"16","option_D":"18","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":14,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"ক্ষার ধাতু","question_content":"নিচের কোনটি ক্ষার ধাতু?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"A","option_A":"Na","option_B":"Mg","option_C":"Al","option_D":"Ca","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":15,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"হ্যালোজেন","question_content":"নিচের কোন মৌলটি হ্যালোজেন?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"B","option_A":"O","option_B":"Cl","option_C":"Ne","option_D":"Na","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":16,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"নিষ্ক্রিয় গ্যাস","question_content":"নিচের কোনটি নিষ্ক্রিয় গ্যাস?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"C","option_A":"N₂","option_B":"O₂","option_C":"Ne","option_D":"H₂","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":17,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"পর্যায় ধর্ম","question_content":"একটি পর্যায়ে বাম থেকে ডানে গেলে সাধারণত পারমাণবিক ব্যাসার্ধ কীভাবে পরিবর্তিত হয়?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"D","option_A":"বাড়ে","option_B":"অপরিবর্তিত থাকে","option_C":"প্রথমে বাড়ে পরে কমে","option_D":"কমে","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":18,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"আয়নন শক্তি","question_content":"একটি পর্যায়ে বাম থেকে ডানে গেলে সাধারণত আয়নন শক্তি কীভাবে পরিবর্তিত হয়?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"A","option_A":"বাড়ে","option_B":"কমে","option_C":"শূন্য হয়","option_D":"অপরিবর্তিত থাকে","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":19,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"তড়িৎঋণাত্মকতা","question_content":"পর্যায় সারণিতে সর্বাধিক তড়িৎঋণাত্মক মৌল কোনটি?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"B","option_A":"O","option_B":"F","option_C":"Cl","option_D":"N","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":20,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"রাসায়নিক বন্ধন","question_content":"NaCl-এ প্রধানত কোন ধরনের বন্ধন বিদ্যমান?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"C","option_A":"সমযোজী","option_B":"ধাতব","option_C":"আয়নিক","option_D":"হাইড্রোজেন","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":21,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"সমযোজী বন্ধন","question_content":"H₂ অণুতে দুইটি হাইড্রোজেন পরমাণুর মধ্যে কী ধরনের বন্ধন থাকে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"D","option_A":"আয়নিক","option_B":"ধাতব","option_C":"হাইড্রোজেন","option_D":"সমযোজী","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":22,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"অক্টেট নীতি","question_content":"অধিকাংশ প্রধান-গোষ্ঠীর পরমাণু বন্ধন গঠনের সময় কোন স্থিতিশীল বিন্যাস অর্জনের চেষ্টা করে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"A","option_A":"অক্টেট","option_B":"ডুপ্লেট সবসময়","option_C":"দশটি ইলেকট্রন","option_D":"একটি ইলেকট্রন","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":23,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"অক্সিডেশন সংখ্যা","question_content":"মৌল অবস্থায় একটি মৌলের oxidation number কত?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"B","option_A":"+1","option_B":"0","option_C":"-1","option_D":"+2","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":24,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"জারণ-বিজারণ","question_content":"যে প্রক্রিয়ায় কোনো পদার্থ ইলেকট্রন ত্যাগ করে তাকে কী বলে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"C","option_A":"বিজারণ","option_B":"নিরপেক্ষকরণ","option_C":"জারণ","option_D":"দহন","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":25,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"জারক","question_content":"জারক পদার্থ সাধারণত কী করে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"D","option_A":"ইলেকট্রন ত্যাগ করে","option_B":"প্রোটন ত্যাগ করে","option_C":"অক্সিজেন সবসময় ত্যাগ করে","option_D":"ইলেকট্রন গ্রহণ করে","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":26,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"মোল ধারণা","question_content":"১ মোল পদার্থে প্রায় কতটি কণা থাকে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"A","option_A":"6.022 × 10²³","option_B":"6.022 × 10²²","option_C":"3.011 × 10²³","option_D":"1.602 × 10⁻¹⁹","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":27,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"মোলার ভর","question_content":"H₂O-এর মোলার ভর কত?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"B","option_A":"16 g mol⁻¹","option_B":"18 g mol⁻¹","option_C":"20 g mol⁻¹","option_D":"22 g mol⁻¹","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":28,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"আদর্শ গ্যাস","question_content":"আদর্শ গ্যাস সমীকরণ কোনটি?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"C","option_A":"P = nRT","option_B":"PV = nT","option_C":"PV = nRT","option_D":"V = PRT","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":29,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"গ্যাসের চাপ","question_content":"নির্দিষ্ট তাপমাত্রায় গ্যাসের আয়তন কমালে চাপ সাধারণত কী হয়?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"D","option_A":"কমে","option_B":"শূন্য হয়","option_C":"অপরিবর্তিত থাকে","option_D":"বাড়ে","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":30,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"বয়েলের সূত্র","question_content":"স্থির তাপমাত্রায় নির্দিষ্ট ভরের গ্যাসের চাপ ও আয়তনের সম্পর্ক কী?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"A","option_A":"ব্যস্তানুপাতিক","option_B":"সমানুপাতিক","option_C":"কোনো সম্পর্ক নেই","option_D":"বর্গানুপাতিক","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":31,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"চার্লসের সূত্র","question_content":"স্থির চাপে নির্দিষ্ট ভরের গ্যাসের আয়তন পরম তাপমাত্রার সঙ্গে কীভাবে পরিবর্তিত হয়?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"B","option_A":"ব্যস্তানুপাতিক","option_B":"সমানুপাতিক","option_C":"অপরিবর্তিত","option_D":"বর্গের সমানুপাতিক","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":32,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"দ্রবণ","question_content":"দ্রবণে যে উপাদানটি তুলনামূলকভাবে বেশি পরিমাণে থাকে তাকে কী বলে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"C","option_A":"দ্রব","option_B":"দ্রবীভূত পদার্থ","option_C":"দ্রাবক","option_D":"তলানি","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":33,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"মোলারিটি","question_content":"মোলারিটি প্রকাশের সঠিক একক কোনটি?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"D","option_A":"mol kg⁻¹","option_B":"g L⁻¹","option_C":"g mol⁻¹","option_D":"mol L⁻¹","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":34,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"pH","question_content":"নিরপেক্ষ জলীয় দ্রবণের pH (২৫°C-এ) কত?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"A","option_A":"7","option_B":"1","option_C":"14","option_D":"0","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":35,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"অম্ল","question_content":"Arrhenius তত্ত্ব অনুযায়ী অম্ল জলীয় দ্রবণে কোন আয়ন উৎপন্ন করে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"B","option_A":"OH⁻","option_B":"H⁺","option_C":"Na⁺","option_D":"Cl⁻","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":36,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"ক্ষার","question_content":"Arrhenius তত্ত্ব অনুযায়ী ক্ষার জলীয় দ্রবণে কোন আয়ন উৎপন্ন করে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"C","option_A":"H⁺","option_B":"Cl⁻","option_C":"OH⁻","option_D":"Na⁺","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":37,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"নিরপেক্ষকরণ","question_content":"অম্ল ও ক্ষারের বিক্রিয়ায় সাধারণত কী উৎপন্ন হয়?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"D","option_A":"শুধু গ্যাস","option_B":"শুধু পানি","option_C":"শুধু লবণ","option_D":"লবণ ও পানি","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":38,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"রাসায়নিক সাম্যাবস্থা","question_content":"সাম্যাবস্থায় সম্মুখ ও পশ্চাৎমুখী বিক্রিয়ার হার কেমন হয়?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"A","option_A":"সমান","option_B":"শুধু সম্মুখ বিক্রিয়া থাকে","option_C":"শুধু পশ্চাৎ বিক্রিয়া থাকে","option_D":"উভয়ই শূন্য","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":39,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"লে শাতেলিয়ের নীতি","question_content":"সাম্যাবস্থার কোনো সিস্টেমে পরিবর্তন আরোপ করলে সিস্টেম কীভাবে প্রতিক্রিয়া করে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"B","option_A":"পরিবর্তনকে সবসময় বাড়ায়","option_B":"পরিবর্তনের প্রভাব কমানোর দিকে সরে","option_C":"সবসময় বামদিকে সরে","option_D":"সবসময় ডানদিকে সরে","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":40,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"রাসায়নিক গতিবিদ্যা","question_content":"তাপমাত্রা বাড়ালে অধিকাংশ রাসায়নিক বিক্রিয়ার হার কীভাবে পরিবর্তিত হয়?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"C","option_A":"কমে","option_B":"শূন্য হয়","option_C":"বাড়ে","option_D":"অপরিবর্তিত থাকে","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":41,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"অনুঘটক","question_content":"অনুঘটকের প্রধান কাজ কী?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"D","option_A":"সাম্য ধ্রুবক পরিবর্তন করা","option_B":"বিক্রিয়ার তাপ পরিবর্তন করা","option_C":"উৎপাদনের প্রকৃতি বদলে দেওয়া","option_D":"সক্রিয়ণ শক্তি কমানো","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":42,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"জৈব রসায়ন","question_content":"জৈব রসায়নের প্রধান বিষয় কী?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"A","option_A":"কার্বন যৌগের রসায়ন","option_B":"শুধু ধাতুর রসায়ন","option_C":"শুধু গ্যাসের রসায়ন","option_D":"শুধু অজৈব লবণ","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":43,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"হাইড্রোকার্বন","question_content":"শুধু কার্বন ও হাইড্রোজেন দ্বারা গঠিত যৌগকে কী বলে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"B","option_A":"অ্যালকোহল","option_B":"হাইড্রোকার্বন","option_C":"অ্যাসিড","option_D":"কিটোন","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":44,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"অ্যালকেন","question_content":"অ্যালকেনের সাধারণ সংকেত কোনটি?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"C","option_A":"CₙH₂ₙ","option_B":"CₙH₂ₙ₋₂","option_C":"CₙH₂ₙ₊₂","option_D":"CₙHₙ","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":45,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"অ্যালকিন","question_content":"অ্যালকিনে সাধারণত কোন কার্যকরী বৈশিষ্ট্য থাকে?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"D","option_A":"শুধু একক বন্ধন","option_B":"ত্রিবন্ধন","option_C":"কার্বন-অক্সিজেন দ্বিবন্ধন","option_D":"কার্বন-কার্বন দ্বিবন্ধন","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":46,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"অ্যালকাইন","question_content":"অ্যালকাইনের সাধারণ সংকেত কোনটি?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"A","option_A":"CₙH₂ₙ₋₂","option_B":"CₙH₂ₙ₊₂","option_C":"CₙH₂ₙ","option_D":"CₙHₙ₊₂","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":47,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"অ্যালকোহল","question_content":"ইথানলের কার্যকরী মূলক কোনটি?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"B","option_A":"–COOH","option_B":"–OH","option_C":"–CHO","option_D":"–CO–","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":48,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"কার্বক্সিলিক অ্যাসিড","question_content":"কার্বক্সিলিক অ্যাসিডের কার্যকরী মূলক কোনটি?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"C","option_A":"–OH","option_B":"–CHO","option_C":"–COOH","option_D":"–NH₂","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":49,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"পলিমার","question_content":"অনেক ছোট অণু পরস্পর যুক্ত হয়ে বৃহৎ অণু গঠন করলে ছোট অণুগুলোকে কী বলা হয়?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"D","option_A":"পলিমার","option_B":"ক্যাটালিস্ট","option_C":"ম্যাক্রোমলিকিউল","option_D":"মনোমার","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":50,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"পরিবেশ রসায়ন","question_content":"গ্রিনহাউস প্রভাবে গুরুত্বপূর্ণ একটি গ্যাস কোনটি?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"A","option_A":"CO₂","option_B":"N₂","option_C":"He","option_D":"Ne","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false},{"row_number":51,"data":{"question_code":"","curriculum_code":"","class_order":0,"group_id":0,"subject_code":"","chapter_code":"","topic_code":"","pattern_id":0,"difficulty_id":0,"language_id":0,"question_type":"MCQ","question_title":"জলদূষণ","question_content":"জলে অতিরিক্ত জৈব দূষণ নির্ণয়ে BOD-এর পূর্ণরূপ কী?","marks":1,"negative_marks":0,"estimated_time_seconds":60,"shuffle_options":1,"bloom_level_id":0,"board_id":0,"syllabus_id":0,"correct_option":"B","option_A":"Biological Oxygen Density","option_B":"Biochemical Oxygen Demand","option_C":"Biological Oxide Demand","option_D":"Basic Oxygen Demand","option_E":""},"errors":["curriculum_code is required","class_order is required","subject_code is required","pattern_id is required","difficulty_id is required","language_id is required","Academic mapping not found for curriculum/class/group/subject"],"warnings":[],"valid":false}]}