Question

The true statement(s) regarding the complex $\left[Cu\right(N{H}_3{)}_4{]}^{2+}$ is/are:

• A. It is paramagnetic, having one unpaired electron
• B. It is a square planar complex
• C. The hybridisation of the central atom is $s{p}^3$
• D. EAN for copper is 36

Answer 1

Answer: (A), (B)

The correct options are
A It is paramagnetic, having one unpaired electron
B It is a square planar complex

In $\left[Cu\right(N{H}_3{)}_4{]}^{2+}$, $Cu$ exists in +2 oxidaion state.

EAN= 29-2+8=35

The hybridisation of the complex is $ds{p}^2$ and it is square planar.

It is paramagnetic and has one unpaired electron.