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- 1. Multiple Choice
What is an exothermic change
A change that can be reversed
A change that is useful
A change in which heat is released
A change in which heat is absorbed
- 2. Multiple Choice
What is sublimation
Gas-Liquid
Gas-Solid
Liquid-Solid
Solid-Gas
- 3. Multiple Choice
What type of change is boiling of an egg
Chemical
Irreversible
Useful
All of these
- 4. Multiple Choice
Which of the following is a Periodic change
Tides
Building of Dam
Cutting of tree
None of these
- 5. Multiple Choice
Which of the following is an irreversible change
Melting Of Tar
Rolling of paper
Boiling of water
Milk to Curd
- 6. Multiple Choice
What type of Change is Rusting Of Iron
Irreversible
Physical
Periodic
All of these
- 7. Multiple Choice
Which of the following is the correct type of change of building a dam
Manmade
Reversible
Chemical
Desirable
- 8. Multiple Choice
What is the correct meaning of Galvanization
Coating metal with its own oxide to make it more durable
Mainly coating Aluminium with zinc to prevent corrosion or rusting
Coating a metal with a layer of zinc to prevent corrosion or rusting
Mainly coating Aluminium with its own oxide to make it more durable
- 9. Multiple Choice
Which of the following examples has more than one type of changes(VERY BASIC)
Tearing a Piece of Paper
Folding paper
Baking Of Cake
Milk To Paneer
- 10. Multiple Choice
How many types of common changes are there
14
16
12
10
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