MEDIUM
10th CBSE
IMPORTANT
Earn 100

What is the difference between slaked lime and limewater?

Important Questions on Question Bank

MEDIUM
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 12
Why is sodium chloride required in our body?
MEDIUM
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 13
What happens when a sample of sodium hydrogen carbonate is heated? Write the equation of the reaction involved.
MEDIUM
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 14

What happens when bleaching powder is heated with dilute H2SO4? Give the equation of the reaction. 

EASY
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 15

How many molecules of water of crystallization are present in the following substance? 

Crystal of copper sulphate. 

EASY
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 15

How many molecules of water of crystallization are present in the following substance? 

Gypsum 
 

EASY
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 15

How many molecules of water of crystallization are present in the following substance? 

Washing soda 
 

HARD
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 16

How will you obtain bleaching powder from limestone? Write equations for the reactions involved. 

MEDIUM
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 17
Describe an activity to show that blue copper sulphate when heated becomes colourless.