ICSE 2026 Chemistry Answer Key: The Council for the Indian School Certificate Examinations (CISCE) conducted the ICSE Class 10 Chemistry (Science Paper 2) exam today, March 11, 2026, from 11:00 AM. According to student's initial reactions, the chemistry paper was moderate. Numerical questions were a bit more calculative than expected according to some students. Approximately 2.6 lakh students across the country are appearing for this crucial paper across over 2,500 designated centers.
The ICSE 2026 Chemistry question paper is structured for a total of 80 marks with a duration of two hours. Following the standard ICSE pattern, the paper is divided into two sections of 40 marks each. Candidates will also be granted an additional 15 minutes of reading time to strategise their approach before they begin writing. Once the exam concludes at 1:00 PM, subject experts will begin reviewing the questions to provide the ICSE 2026 Chemistry Answer Key and a comprehensive breakdown for the students.
ICSE 2026 Chemistry Answer Key Unofficial
Immediately after the conclusion of the exam at 1:00 PM, an unofficial ICSE Chemistry Answer Key 2026 will be updated here. This answer key, curated by the GMU subject matter experts, will cover the objective-type questions. Students who appeared for the Chemistry exam can check their answers to calculate their probable scores.
| Questions | Answers |
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SECTION A - QUESTION 1: Choose the correct answers to the questions from the given options: 1. A non-metal which reacts with concentrated sulphuric acid to form two gases which turn lime water milky is: |
(B) Carbon |
| 2. Which of the following element pairs will form an ionic bond. | (C) R - Element of group 2 and group 17 |
| 3. The electronic configuration of an element is 2,8,2. The hydroxide of this element can produce ---hydroxyl ion per molecule. | (B) 2 |
| 4. With respect to the electrolysis of copper (11) sulphate solution using copper electrodes, which statement is correct. | (A) Copper element is deposited at the ngative electrode |
| 5. Identify the equation that shows the reaction of ethane with chlorine in pressence of ultraviolet light | (C) |
| 6. A hydrocarbon X undergoes a reaction under suitable condition as show. Which compound is/are unsturated | (B) Y only |
| 7. Rita added dilute hydrochloric acid to four metals. She recorded her observation in the given table. While noting her observation she made some erors. Which observation made by Rita is/are correct: | (D both 2 and 4 |
| 8. An atom of X foms an ion according to the equation X → X-2. The atomic number of the atom X is: | (C) 12 |
| 9. The method which cannot be used for preparation of copper salt is | (C) 3 |
| 10. The compound that has highest melting point among these is: | (B) Sodium chloride |
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11. Assertion : Dillute sulphuric acid is stroger than concentrated sulphuric acid Reason: Dilute sulphuric acid has a higher concentration of mobile ions |
(C) Both A and R are true and R is the correct explanation. |
| 12. What volume of carbon dioxide is produced at STP when 5 litres of propane is burnt completely according to the equation below | (B) 15 litres |
| 13. An unsaturaed hydrocarbon with three atoms of carbon and six atoms of hydrogen is: | (C) Propene |
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14. Assertion: In the electrolysis of acidified water, the volume of hydrogen liberated is twice the volume of oxygen formed. Reason: Water has hydrogen and oxygen in the ratio of 1:2 by volume. |
(A) A is true but R is false |
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15. In the electrolysis of molten aluminum oxide for extraction of aluminium the following reaction. The reaction that takes place at the negative electrode is: |
(A) 1 |
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QUESTION 2 (i) Given below is the inductrial process for the manufacture of ammonia gas. Studey the diagram and asnwer the questions. (A) to (D) |
(a) Haber's process (b) Finley divided iron (c) By liquification or dissolving it in water (d) High solubility in wter and its basic nature. |
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(ii) Identify the following terms/compounds (A) to (E) |
(a) Calcium Carbide (b) Ethane (c) Ferric Hydroxide (d) Lone pair (e) Gram molecular mass |
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(iii) Match Column A with B |
(a) - 4 (b) - 3 (c) - 5 (d) - 1 (e) - 2 |
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(iv) Complete the following sentences by choosing the correct option from brackets. |
(A) ZnO (C) 5.6 (D) Cu (E) HCl |
ICSE 2026 Chemistry Question Paper Analysis
A detailed, section-wise ICSE 2026 Chemistry exam analysis will be available here shortly after the exam ends. This analysis will incorporate direct feedback from students, as well as insights from teachers regarding the difficulty level of the paper.
| Particulars | Details |
| Overall difficulty level of the paper | Moderate |
| Section A difficulty level | Moderate |
| Section B difficulty level | Moderate to Difficult |
| Was the paper lengthy | A bit on the lengthy side. |
It is crucial to note that this ICSE 2026 Chemistry Unofficial Answer Key will only serve as a primary resource for students to calculate their probable scores and evaluate their performance. Students are advised to keep their question papers handy to cross-verify their responses once they are live.
Students who appeared for the Physics exam can check their performance through ICSE 2026 Physics Answer Key(OUT) and Exam Analysis.
Live Updates
Given the expected moderate difficulty, a "good attempt" would be completing the full 80 marks with high accuracy in Section A. Students aiming for 90%+ should have correctly answered all MCQs and chosen Section B questions that they could solve confidently.
According to subject experts the 2026 paper was slightly more analytical than 2025. While last year's paper was fairly straightforward, this year’s students encountered tricky chemical equations and multi-step numericals.
- Ananya from Bengaluru says, “I found the Section B structured questions to be very scoring. I chose the questions during the 15 minute reading time. The diagrams were clear, and labeling them was easy. It was a moderate paper overall.”
- Karthik Nair (Kochi) says, "Some of the MCQs in Section A were a bit tricky. There were a few application-based questions which took a lot more than i expected, but the rest of the paper was very student-friendly.”
- Sana Shaikh from Pune "The 15 minutes of reading time really helped me pick the right questions in Section B. I avoided the complex numericals and stuck to the descriptive chemical reactions. I'm expecting a good score!”
Initial predictions from subject experts suggest a moderate difficulty level. Following the trend of this year's "tougher" Maths and Physics papers, students expect a balance of direct theory and application-based questions.
According to the student's initial reviews, the ICSE Chemistry Question Paper 2026 was only moderately lengthy. Students managed their 15-minute reading time (10:45 AM – 11:00 AM) effectively to pick the best Section B questions. This helped them complete the paper on time.
As scheduled the ICSE 2026 Chemistry exam concluded at 1 PM after the final ball rang across centres. Students will leave the examination centres after submitting their answer booklet. Stay tuned for initial feedback and reviews.
The ICSE 2026 Chemistry exam will conclude in 15 minutes at 1:00 PM. The subject experts will provide the answer key and exam analysis shortly after the exam concludes.
An unofficial ICSE 2026 Chemistry answer key curated by subject experts will be updated here shortly after 1:00 PM. This will help students verify their objective answers and calculate a rough score before the official results.
Based on the early trends from specimen papers suggest a focus on application-based and critical thinking questions. However, the expert’s analysis at 1:00 PM will confirm if the 2026 paper followed this trend or remained direct and theory-heavy.
If students find any factual error or an out-of-syllabus question, they must notify the invigilator immediately. The CISCE usually provides grace marks or alternative marking schemes if a legitimate error is identified in the paper.
As per the schedule, The ICSE 2026 Class 10th Chemistry exam writing phase officially started at 11:00 AM. Students have started writing their answers. The exam will conclude after two hours at 1:00 PM sharp.
Question papers were distributed and the 15 minute reading time started at 10:45 AM. Students will read the question paper and carefully decide which questions are they most confident about. This will help students manage time effectively during the writing phase. The writing phase starts at 11:00 AM sharp.
- Haber’s Process (Ammonia)
- Ostwald’s Process (Nitric Acid)
- Contact Process (Sulphuric Acid)
Memorise the specific catalysts, temperatures, and pressures required for these industrial preparations
- Ensure that chemical equations are balanced.
- Mention the states (solid, liquid, gas, aqueous) if specific to the reaction.
- Use an arrow (→) for the reaction.
- Specify catalysts or heat (Δ) above the arrow.
- Identify and name compounds using IUPAC nomenclature.
- Distinguish between saturated and unsaturated hydrocarbons.
- The laboratory preparation of Ethane, Ethene, and Ethyne, including their specific reagents.
No, the paper remains the same and is divided into two main sections - A and B of 40 marks each, totaling 80 marks. Section A is compulsory (objective and short answers), while Section B requires students to attempt any 4 out of 6 structured questions.