EASY
8th ICSE
IMPORTANT
Earn 100

Name the compound responsible for temporary hardness.

Important Questions on Water

EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 8 - Water>Exercise>Q 2
Name the compound responsible for permanent hardness of water.
EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 8 - Water>Exercise>Q 2
Suggest one method for the removal along with the reaction for temporary hardness.
EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 8 - Water>Exercise>Q 2

 Suggest one method for the removal along with the reactions for:

Permanent hardness of water:

EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 8 - Water>Exercise>Q 3
What are the main causes of water pollution ? How can it be controlled ?
EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 8 - Water>Exercise>Q 4
 Name four water-borne diseases.
EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 8 - Water>Exercise>Q 5
Give reason: Alcohol is mixed with water and is used in car radiator.
EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 8 - Water>Exercise>Q 5
Give reason of Icebergs float on ocean water.
EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 8 - Water>Exercise>Q 5
Give reasons :(a) Alcohol is mixed with water and is used in car radiator