Question

Which of the following facts about the complex $\left[Cr\right(N{H}_3{)}_6]C{l}_3$ is wrong?

• A. The complex involves $d^{2}s{p}^3$ hybridisation and is octahedral in shape.
• B. The complex is paramagnetic.
• C. The complex is an outer orbital complex.
• D. The complex gives white precipitate with silver nitrate solution.

Answer 1

Answer: (C)

The complex is an outer orbital complex.

Where $N{H}_3$= Weak Field Ligand.

$\left[d_{2}s{p}_3\right]$→ Hybridisation

3 unpaired electrons. (PARAMAGNETIC)

The complex is octahedral complex.

The complex is inner orbital complex. (inner d orbitals involved in hybridisation)

As $3C{l}^{-}$ ions are outside the sphere so will give precipitate with silver nitrate solution.

Option C is correct option.