EASY
7th CBSE
IMPORTANT
Earn 100

Choose the correct option and fill in the blanks.

Shredding of paper is a change.

[physical, chemical, irreversible, evaporation, crystallisation]

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Important Questions on Physical and Chemical Changes

EASY
7th CBSE
IMPORTANT
New Science Ahead>Chapter 6 - Physical and Chemical Changes>Looking Back>Q 5
What kind of changes is burning of paper?
MEDIUM
7th CBSE
IMPORTANT
New Science Ahead>Chapter 6 - Physical and Chemical Changes>Exercises>Q 1
The smallest particle of a compound which shows all its properties is a/an
EASY
7th CBSE
IMPORTANT
New Science Ahead>Chapter 6 - Physical and Chemical Changes>Exercises>Q 2
Which of these is not true about compounds?
EASY
7th CBSE
IMPORTANT
New Science Ahead>Chapter 6 - Physical and Chemical Changes>Exercises>Q 3
Give the symbol of the following element.
Arsenic
EASY
7th CBSE
IMPORTANT
New Science Ahead>Chapter 6 - Physical and Chemical Changes>Exercises>Q 4
The valency of helium and calcium are _____ respectively.
EASY
7th CBSE
IMPORTANT
New Science Ahead>Chapter 6 - Physical and Chemical Changes>Exercises>Q 5
Sulphate is a/an _____.
EASY
7th CBSE
IMPORTANT
New Science Ahead>Chapter 6 - Physical and Chemical Changes>Exercises>Q 6
Which of the following does a chemical equation NOT do?
EASY
7th CBSE
IMPORTANT
New Science Ahead>Chapter 6 - Physical and Chemical Changes>Exercises>Q 7
Which of these is a chemical change?