JEE Main Chemistry question

Bones (containing phosphorus residues) can appear to glow in the dark because:

(A)They contain a shining material
(B)They contain red phosphorus
(C)White phosphorus changes into red phosphorus
(D)White phosphorus undergoes slow combustion with airCorrect

Answer: (D)

Solution

The faint glow sometimes associated with decaying bone matter is attributed to trace phosphorus compounds undergoing slow oxidation on exposure to air —

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Question ID VK-146343