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Question

White phosphorus burns in air spontaneously.


A

True

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B

False

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Solution

The correct option is A

True


White phosphorus is highly reactive and has a very low ignition temperature. It spontaneously ignites at about 30 °C in air. So if the room temperature is more than 30 °C, then it would catch fire.

It burns with a white flame producing clouds of white smoke. It is usually stored under water to prevent exposure to air.


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