EASY
10th CBSE
IMPORTANT
Earn 100

Give an example of chemical reaction that is characterised by change in colour.

Important Questions on Chemical Reactions and Equations

EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>MOCK TEST - 1>Q 6
Mention any two characteristics of the chemical reaction which takes place when dilute sulphuric acid is poured over zinc granules.
MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>MOCK TEST - 1>Q 7
Give a balanced equation for the redox reaction.
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>MOCK TEST - 1>Q 7

Give a balanced equation for the following reactions:

Thermal decomposition reaction.

EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>MOCK TEST - 1>Q 8
''Respiration is an exothermic process." Comment.
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>MOCK TEST - 1>Q 8
Why photosynthesis is considered as an endothermic reaction? Explain.
MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>MOCK TEST - 1>Q 9
Give the word equation for the following and then balance the equation:
Sodium carbonate combines with hydrogen chloride acid to form sodium chloride, water and carbon dioxide.
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>MOCK TEST - 1>Q 9
Give the word equation for the following and then balance the equation:
Zinc metal reacts with hydrochloric acid to produce a solution of zinc chloride and hydrogen gas.
MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>MOCK TEST - 1>Q 10
Define the terms oxidation and reduction in terms of gain or loss of hydrogen with one example each.