When we strike a matchstick against the rough surface, it produce fire
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if we strike a matchstick with rough surface of matchbox, it produces fire. It is because frictional force is applied between these both and friction leads to fire.
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Safety matches ignite due to the extreme reactivity of phosphorus with the potassium chlorate in the match head. When the match is struck the phosphorus and chlorate mix in a small amount forming something akin to the explosive Armstrong's mixture which ignites due to the friction.
Explanation:
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