Red phosphorus is kept under water to protect it from air.(a) True(b) FalseThis question was posed to me in semester exam.Enquiry is from P-Block Elements topic in chapter P-Block Elements of Chemistry – Class 12

Red phosphorus is kept under water to protect it from air.(a) True(b)

1.	Red phosphorus is kept under water to protect it from air.(a) True(b) FalseThis question was posed to me in semester exam.Enquiry is from P-Block Elements topic in chapter P-Block Elements of Chemistry – Class 12
Answer» The correct answer is (B) False For explanation: White phosphorus is a highly reactive clement and must be stored underwater for safekeeping to prevent it from catching fire spontaneously in the air. In water, white phosphorus reacts with oxygen WITHIN hours or days. In water with low oxygen, white phosphorus may degrade to a highly toxic compound called phosphine, which EVENTUALLY evaporates to the air and is CHANGED to less harmful chemicals.

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