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Burning Behaviour of Substances

In modern mat...

Question

In modern matches, why do we need to rub the bulb on the matchbox?

A

Sulphur

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B

Potassium Chlorate

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C

Both Potassium Chlorate and Sulphur

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D

Nitrogen

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Solution

The correct option is A
Sulphur

In modern matches, the bulb contains red phosphorus which will only ignite on being rubbed with potassium chlorate present on the rough strip of the matchbox.

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In modern matches, why do we need to rub the bulb on the matchbox?

Q. Special strike-anywhere matches can light a fire by rubbing against any rough surface. They do not require a matchbox strip for rubbing the matchheads contain an oxidizing agent, such as potassium chlorate and a sulphide of:

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