In what way can it be proved that $PH_3$ is basic in nature?
(N/A) $PH_3$ reacts with acids like $HI$ to form $PH_4I$,which indicates its basic nature.
$PH_3 + HI \rightarrow PH_4I$
Due to the presence of a lone pair of electrons on the phosphorus atom,$PH_3$ acts as a Lewis base in this reaction.
$PH_3 + HI \rightarrow PH_4I$
Due to the presence of a lone pair of electrons on the phosphorus atom,$PH_3$ acts as a Lewis base in this reaction.
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