MEDIUM
7th ICSE
IMPORTANT
Earn 100

What do you observe when solid ammonium chloride is heated?

Important Questions on Physical and Chemical Changes

MEDIUM
7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 2 - Physical and Chemical Changes>EXERCISE>Q 8
What do you observe when an iron nail is kept in tap water for a few days?
MEDIUM
7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 2 - Physical and Chemical Changes>EXERCISE>Q 8
What do you observe when a spoon of sugar is heated in a pan?
MEDIUM
7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 2 - Physical and Chemical Changes>EXERCISE>Q 8
What do you observe when a light match stick is brought near the mouth of the test tube containing hydrogen gas?
MEDIUM
7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 2 - Physical and Chemical Changes>EXERCISE>Q 8
What do you observe when a quick lime is dissolved in water?
MEDIUM
7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 2 - Physical and Chemical Changes>EXERCISE>Q 8
What do you observe when a little amount of curd is added to a bowl containing warm milk and kept for five hours? 
MEDIUM
7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 2 - Physical and Chemical Changes>EXERCISE>Q 9
Name a chemical change which takes place in presence of heat.
MEDIUM
7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 2 - Physical and Chemical Changes>EXERCISE>Q 9
Name a chemical change which takes place in presence of light.
MEDIUM
7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 2 - Physical and Chemical Changes>EXERCISE>Q 9
Name a chemical change that takes place in presence of electricity.