Give two examples of redox reactions. 

Important Questions on Chemical Reactions and Equations

MEDIUM

9th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-9>Chapter 10 - Chemical Reactions and Equations>Exercises>Q 11

Explain the chemical reactions that take place in the presence of sunlight. 

MEDIUM

9th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-9>Chapter 10 - Chemical Reactions and Equations>Exercises>Q 12

What do you understand by precipitation reactions? Explain using examples. 

EASY

9th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-9>Chapter 10 - Chemical Reactions and Equations>Exercises>Q 13

Explain exothermic and endothermic reactions through examples.

HARD

9th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-9>Chapter 10 - Chemical Reactions and Equations>Exercises>Q 14

Hanif burnt a magnesium ribbon using a spirit lamp and on the basis of his observations he said that the type of chemical reaction taking place is combination as well as exothermic as well as oxidation. Do you agree with Hanif? Give reasons for your answer and explain.