Question

Select incorrect statement(s) for ${\left[Cu{\left(CN\right)}_4\right]}^{3-},{\left[Cd{\left(CN\right)}_4\right]}^{2-}$ and ${\left[Cu{\left(N{H}_3\right)}_4\right]}^{2+}$ complex ion.

• A. Both and have square planar geometry.
• B. Have equal no. of unpaired electron.
• C. Can be separated form the mixture on passing gas.
• D. All the three complexes have magnetic moment equal to zero.

Answer 1

Answer: (A), (B), (D)

The correct options are
A Both and have square planar geometry.
B Have equal no. of unpaired electron.
D All the three complexes have magnetic moment equal to zero.

${\left[Cu{\left(CN\right)}_4\right]}^{3-}-C{u}^{+}-\left[Ar\right]3d^{10}-ds{p}^2$ hybridization- Square planar
${\left[Cd{\left(CN\right)}_4\right]}^{2-}-C{d}^{2+}-\left[Kr\right]4d^{10}-s{p}^3$ hybridization
${\left[Cu{\left(N{H}_3\right)}_4\right]}^{2+}-C{u}^{2+}-\left[Ar\right]3d^9-s{p}^3$ hybridization