Question

Unlike $PbC{l}_4,P{I}_4$ and $PB{r}_4$ are not found because:

• A. bromine and iodine are more electronegative than chlorine.
• B. iodine and bromine are smaller in size.
• C. larger iodine and bromine are able to reduce $P{b}^{4+}$ to $P{b}^{2+}$ or Pb.
• D. the statement is incorrect

Answer 1

Answer: (C)

$P{b}^{4+}$ has higher polarising power and $B{r}^{-}$ and $I^{-}$ being larger in size can easily give the electrons to $P{b}^{4+}$, i.e., as compared to $C{l}^{-},B{r}^{-}$ and $I^{-}$ are good reducing agents