Chemical Reactions and Equations – CBSE Class 10 Previous Year Questions (2020–2026)
All 19 CBSE Class 10 previous-year questions from Chemical Reactions and Equations (Science), 2020–2026, taken from 8 papers. Practise them together in one test with the official marking and answer key, then review every answer.
▶ Practise all 19 questionsAll CBSE Class 10 chapters
Chemical Reactions and Equations questions by paper
Sample questions
- CBSE Class 10 Science Board 2026 (Set 31/1/1)
ii Which of the following options clearly describes both the reactions 1 A is double displacement ii is displacement reaction Both and ii are displacement reactions and - CBSE Class 10 Science Board 2026 (Set 31/1/1)
The gases evolved on heating lead ID nitrate crystals are 1 A NO and and NO NO and NO and - CBSE Class 10 Science SQP 2026-27
Chameleons contain crystals that reflect light and produce colour Adjusting the spacing between these crystals they can alter the of light reflected thus changing their… - CBSE Class 10 Science Board 2025 (Set 31/1/1)
Electrolysis of water is a decomposition reaction The mass ratio My Mo of hydrogen and oxygen gases liberated at the electrodes during electrolysis of water is A 8 1 2…
Question text shown from the scanned paper; open the test to see each question exactly as printed.
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