MEDIUM
7th CBSE
IMPORTANT
Earn 100

A chemical change among the following occurs when :

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Important Questions on Physical and Chemical Changes

MEDIUM
7th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 6 - Physical and Chemical Changes>Chapter Review>Q 3
Which of the following is not a chemical change.
MEDIUM
7th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 6 - Physical and Chemical Changes>Chapter Review>Q 4

Due to which of the following, the fruit changes the colour on cutting?

MEDIUM
7th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 6 - Physical and Chemical Changes>Chapter Review>Q 5
What happens when baking soda is added to vinegar?
MEDIUM
7th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 6 - Physical and Chemical Changes>Chapter Review>Q 1
What kind of change takes place on stretching a rubber band ?
EASY
7th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 6 - Physical and Chemical Changes>Chapter Review>Q 2
What is the process of obtaining large crystals from saturated solution of salt known as ?
MEDIUM
7th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 6 - Physical and Chemical Changes>Chapter Review>Q 3
Name the process of coating iron articles with zinc to prevent rusting.
MEDIUM
7th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 6 - Physical and Chemical Changes>Chapter Review>Q 4
Which gas comes out with fizz when a bottle of aerated drink is opened?
MEDIUM
7th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 6 - Physical and Chemical Changes>Chapter Review>Q 5
What kind of chemical changes are rusting and respiration ?