4. Combustion is alan
III. Tick (/) the correct and cross (X) the wrong
statement:
1. Liquids contract on heating
2. In bridges and pavements, small gaps are
left to take care of expansion in summer.
3. The evaporation of liquids is an irreversible
change.
4. Inflammable substances can be used in fire
extinguishers.
V. Match the statements in Column A with those
Column B:
Column B
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Answer
A is ❌
Because liquids dont contract but they go through convection
B Is ✅
Those gaps are left
C is✅
Because the irreversible state is condensation
D is ❌
Inflammblesubstances can't be used because they will cause more fire burning instead of removing it
Explanation:
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