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Chemistry CBSE Live product
Class 10 (2026-27)
Chemical reactions and equations
Introduction to chemical reactions and balancing equations
1.
Introduction to chemical reactions
Question:
2
m.
Select the correct answer:
1.
Which of the following statements is correct?
A chemical equation tells us about the substances involved in a reaction
A chemical equation informs us about the symbols and formulae of the substances involved in a reaction
A chemical equation tells us about the atoms or molecules of the reactants and products involved in a reaction
All are correct
2.
\(Zn\)(s) + \(H_2SO_4\)(aq) → \(ZnSO_4\)(aq) + \(H_2\)(g) is an example of:
Change in colour
Endothermic reaction
Evolution of gas
Precipitation reaction
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