MEDIUM
9th Chhattisgarh Board
IMPORTANT
Earn 100

Write the balanced chemical equation for the following and identify the type of reaction.

Zinc+Copper nitrate→Zinc nitrate+Copper

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 6

Write the balanced chemical equation for the following and identify the type of reaction.

Sodium hydrogencarbonate→Sodium carbonate+carbon dioxide+water

MEDIUM
9th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-9>Chapter 10 - Chemical Reactions and Equations>Exercises>Q 7
Why are decomposition reactions called the opposite of combination reactions? Write equations for these reactions.
MEDIUM
9th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-9>Chapter 10 - Chemical Reactions and Equations>Exercises>Q 8
Write one equation each for decomposition reactions where energy is supplied in the form of heat, light or electricity.
MEDIUM
9th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-9>Chapter 10 - Chemical Reactions and Equations>Exercises>Q 9
What is the difference between displacement and double displacement reactions? Write equations for these reactions. 
MEDIUM
9th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-9>Chapter 10 - Chemical Reactions and Equations>Exercises>Q 10
Give two examples of redox reactions. 
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.