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Question

___ is required for a match stick to catch fire.

A

Ignition temperature

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B

Water

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C

Carbon dioxide

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D

Carbon monoxide

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Solution

The correct option is A Ignition temperature
Matchstick, a piece of wood. tank of petrol etc., fail to catch fire on their own even though they are combustible substances. This is because the ignition temperature of these substances is much higher than that of room temperature. It can catch fire only when its temperature is raised to its ignition temperature.

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Q. Question 16
Fill in the blanks in the following sentences.
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