First slide

Phosphine

Question

Regarding Phosphine, incorrect statement is

Easy

A

It has rotten egg smell
B

It readily reacts with conc.HNO₃
C

It decomposes to give red phosphorous
D

It is non inflammable in pure state

Solution

A)It has rotten fish smell.
B)It readily reacts with conc.HNO₃.
C)It decomposes to give red phosphorous.
D)It is non inflammable in pure state but catches fire due to the presence of P₄ and P₂H₄.
It can be purified by the following method
${PH}_{3} (impure) \overset{HI}{\to} {PH}_{4} I \overset{KOH}{\to} {PH}_{3} (pure) + H_{2} O + KI;$

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