MEDIUM
7th ICSE
IMPORTANT
Earn 100

What factors are responsible for the rotting of food and spoiling of milk?

Important Questions on Physical and Chemical Changes

MEDIUM
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 2 - Physical and Chemical Changes>THINK ZONE>Q 1
How will you know that a chemical change has taken place?
MEDIUM
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 2 - Physical and Chemical Changes>ASSESS YOURSELF>Q 1
Differentiate between physical and chemical change.
HARD
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 2 - Physical and Chemical Changes>ASSESS YOURSELF>Q 2
What are the factors affecting evaporation?
MEDIUM
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 2 - Physical and Chemical Changes>ASSESS YOURSELF>Q 3
How does energy changes during chemical change?
MEDIUM
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 2 - Physical and Chemical Changes>ASSESS YOURSELF>Q 4
Classify the following changes: Melting of snow, cooking of food, beating of heart, germination of seed.
MEDIUM
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 2 - Physical and Chemical Changes>ASSESS YOURSELF>Q 5

Classify the following change as physical or chemical change.

Charring of sugar

MEDIUM
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 2 - Physical and Chemical Changes>ASSESS YOURSELF>Q 5

Classify the following change as physical or chemical change.

Sublimation of ammonium chloride

MEDIUM
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 2 - Physical and Chemical Changes>ASSESS YOURSELF>Q 5

Classify the following change as physical or chemical change.

Burning of butter