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Q.

PH3 produces smokey rings when it comes in contact with air because

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a

PH3 burns in air

b

PH3 reacts with N2

c

PH3 contains impurities of P2H4 which undergo spontaneous combustion

d

PH3 reacts with water vapours

answer is D.

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Detailed Solution

PH3 produces smokey rings when it comes in contact with air because PH3 contains impurities of P2H4 which undergo spontaneous combustion.

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