EASY
9th ICSE
IMPORTANT
Earn 100

Mention any two applications of solubility curves.

Important Questions on Water

EASY
9th ICSE
IMPORTANT
What is the chemical formula of potash alum?
EASY
9th ICSE
IMPORTANT
What is the colour of anhydrous copper sulphate?
EASY
9th ICSE
IMPORTANT
Is table salt deliquescent in nature?
EASY
9th ICSE
IMPORTANT
Why hard water do not form lather with soap?
EASY
9th ICSE
IMPORTANT
What is the cause of hardness in water?
EASY
9th ICSE
IMPORTANT

Complete the reaction.

CaCl2 + 2C17H35COO- Na+ 

EASY
9th ICSE
IMPORTANT

Which method is used for the removal of permanent hardness?

EASY
9th ICSE
IMPORTANT

How hard water can be used to check the lead poisoning?