MEDIUM
10th CBSE
IMPORTANT
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How is washing soda different from sodium bicarbonate?

Important Questions on Question Bank

MEDIUM
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 3
How is sodium carbonate converted into sodium bicarbonate?
MEDIUM
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 4
Name the chemical substance which is used as a flux in the extraction of metals. What happens when it is mixed with water? 
MEDIUM
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 5
Are the crystalline salts really dry? Give your answer with reasons.
MEDIUM
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 6
A white compound of sodium is used to remove hardness of water and also as a reagent in the laboratory. Identify the compound and mention two of its uses. 
EASY
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 7
Explain why baking soda is used as an antacid.
MEDIUM
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 8
Name the compound of calcium which gets hardened when treated with water. Give the equation for the reaction involved. 
EASY
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 9

Write the chemical formula of gypsum. How is it converted into plaster Of Paris? 

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

Why is plaster of Paris stored in a moisture-proof vessel?