Question

why does white phosphorus catch fire spontaneously​

Answer 1

white phosphorus is highly reactive and spontaneously ignites at about 30°c in moist air. it is usually stored under water to prevent exposure is stable atroom temperature but can be converted to the more reactive white phosphorus by heat, sunlight, or friction

Answer 2

Answer:

white phosphorous is very highly reactive metal that it catch fire at 30 degree celcius and it combust with the help of sunlight , air . Thus whitener phosphorous is stored under water

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