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← CBSE Class 10 PYQ
Chemical Reactions and Equations
CBSE Class 10 · Science · 31 past questions
Topic
Oxidation, reduction and redox
3
Decomposition and products of specific reactions
2
Observations and changes in reactions
2
Balancing chemical equations
1
Types of chemical reactions
1
Exothermic and endothermic reactions
0
Level
Easy
1
Moderate
1
Tough
0
Year
2026
2
2025
3
2024
1
2023
0
2 of 31 ·
show all
Q1
2026
The gases evolved on heating lead (II) nitrate crystals are…
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Q4
2026
2 g of green coloured crystals of ferrous sulphate are heated in a dry boiling tube. Name the type of…
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