MEDIUM
10th Rajasthan Board
IMPORTANT
Earn 100

What is Tarnishing? Give an example.

Important Questions on Chemical Reactions and Equations

MEDIUM
10th Rajasthan Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Chemical Reactions and Equations>Exercise>Q 43
Why is a combustion reaction an oxidation reaction?
EASY
10th Rajasthan Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Chemical Reactions and Equations>Exercise>Q 44
What type of reaction is represented by the digestion of food in our body?
EASY
10th Rajasthan Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Chemical Reactions and Equations>Exercise>Q 45

What is an oxidation reaction? Identify in the following reaction (i) the substance oxidised, and (ii) the substance reduced:

ZnO+C→Zn+CO

EASY
10th Rajasthan Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Chemical Reactions and Equations>Exercise>Q 46

Give an example of an oxidation reaction.

MEDIUM
10th Rajasthan Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Chemical Reactions and Equations>Exercise>Q 47

What happens when a piece of iron metal is placed in a copper sulphate solution? Name the type of reaction involved.

MEDIUM
10th Rajasthan Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Chemical Reactions and Equations>Exercise>Q 48
What happens when silver chloride is exposed to sunlight? Write a chemical equation for this reaction. Also, give one use of such a reaction.
EASY
10th Rajasthan Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Chemical Reactions and Equations>Exercise>Q 49
What is combination reaction? Give an example.
MEDIUM
10th Rajasthan Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Chemical Reactions and Equations>Exercise>Q 50
What is double displacement reaction? Give one example.