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Question


What is the main chemical component present in striking surface of a matchbox?


Options:
A .   Potassium
B .   Phosphorus
C .   Potassium chlorate
D .   Graphite
Answer: Option B
:
B
When a matchstick strikes on striking surface of a matchbox, the heat of the friction causes a reaction between the potassium chlorate in the match head and phosphorus in the striking surface.
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