JEE Main Chemistry question

Statement 1 (Assertion): White phosphorus is stored under water. Statement 2 (Reason): White phosphorus is highly reactive and catches fire spontaneously in air.

(A)Assertion is True, Reason is True; Reason is correct explanation for AssertionCorrect
(B)Assertion is True, Reason is True; Reason is not correct explanation for Assertion
(C)Assertion is True, Reason is False
(D)Assertion is False, Reason is True

Answer: (A)

Solution

White phosphorus has a very low ignition temperature (about ) and is pyrophoric, catching fire spontaneously on exposure to air; it is therefore stored submerged under water to exclude

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Question ID VK-138317