8.2 Carboxylic acids and their derivative — Chemistry STD 12 Science — Question

$I$.  $\log \,\,K\, = \,\frac{{nF{E^o}}}{{2.303\,RT}}$

$II$.  $K\, = \,{e^{\frac{{nF{E^o}}}{{RT}}}}$

$III$.  $\log \,\,K\, = -\,\frac{{nF{E^o}}}{{2.303\,RT}}$

$IV$.  $\log \,\,K\, = 0.4342\,\,\frac{{-nF{E^o}}}{{RT}}$

Choose the correct statement $(s)$.

$(A)$ Upon heating, $H _3 PO _3$ undergoes disproportionation reaction to produce $H _3 PO _4$ and $PH _3$.

$(B)$ While $H _3 PO _3$ can act as reducing agent, $H _3 PO _4$ cannot.

$(C)$ $H _3 PO _3$ is a monobasic acid.

$(D)$ The $H$ atom of $P - H$ bond in $H _3 PO _3$ is not ionizable in water.