The Indian School Certificate (ISC) Class 12 Chemistry exam concluded today, February 23, 2026 . The exam took place from 2:00 PM to 5:00 PM. Students nationwide participated in the examination.
Unofficial Answer Key and Analysis Available
An unofficial answer key for the ISC 2026 Chemistry exam is now available. This key allows students to evaluate their performance. A detailed analysis of the question paper is also being released.
The Chemistry theory paper carried a total of 70 marks . The exam duration was 3 hours . The complete paper is worth 100 marks, including practical components.
The question paper consisted of four sections: A, B, C, and D. All questions were mandatory. Students received internal choices in one question from Sections B, C, and D.
Section Breakdown
Section A contained Multiple Choice Questions (MCQs) and objective questions. These totaled 14 marks .
Section B featured 10 short-answer questions. Each question was worth 2 marks, totaling 20 marks .
Section C included 7 questions. Each question carried 3 marks, amounting to 21 marks .
Section D comprised 3 long-answer questions. These questions contributed 15 marks to the total score.
Performance Evaluation
Students can use the unofficial answer key to check their answers. Subject matter experts are providing an analysis of the exam’s difficulty and structure. This analysis is based on initial student feedback.
The official body responsible for the examination is the Council for the Indian School Certificate Examinations (CISCE).
Information regarding the overall difficulty level, section-wise difficulty, and paper length will be updated as more details become available. Students are reminded that unofficial analyses are for reference only. Performance should be confirmed with official results.