The rubbing surface of a matchbox has which of the following element

Sodum

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Potassium

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Phosphorous

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Carbon

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Solution

The correct option is C Phosphorous
The rubbing surface has powdered glass and a little red phosphorus. When the match is struck against the rubbing surface, some red phosphorus gets converted into white phosphorus. This immediately reacts with potassium chlorate in the matchstick head to produce enough heat to ignite antimony trisulphide and start the combustion.

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