When and why a matchstick starts burning
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ANSWER: A matchstick starts burning when we rub it because red phosphorus is present on the tip of matchstick which catches fire on heating and when we rub it the heat is generated by friction
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Potassium chlorate is present on the head of the matchstick. When you rub the head of the matchstick on the striking surface of the matchbox, some heat is generated due to the friction. This heat breaks a small part of the red phosphorus chain. After that some red phosphorus transforms into white phosphorus.
When it comes to oxygen, the match has a secret supply. Stored inside the match head is another chemical called “potassium chlorate”. When it gets hot, it releases a lot of extra oxygen and heat. This makes the match head burn quickly and strongly.
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