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← CBSE Class 10 PYQ
Chemical Reactions and Equations
CBSE Class 10 · Science · 31 past questions
Topic
Balancing chemical equations
7
Types of chemical reactions
7
Decomposition and products of specific reactions
6
Oxidation, reduction and redox
5
Exothermic and endothermic reactions
4
Observations and changes in reactions
2
Level
Easy
2
Moderate
0
Tough
0
Year
2026
2
2025
0
2024
0
2023
0
2 of 31 ·
show all
Q5
2026
When ferrous sulphate crystals are heated in a test tube, we observe that…
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Q7
Sample paper 2026-27
Chameleons contain crystals that reflect light and produce colour. Adjusting the spacing between these…
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