Consider the following statements for the complex [Ni(NH₃)₆]Cl₂:

Question

It is an outer orbital octahedral complex
Hybridization of Ni is sp³d²
It is a paramagnetic complex
It is a diamagnetic complex

Which of the statements given above are correct?

(a) 1 and 2 only
(b) 2 and 3 only
(c) 1, 2 and 3
(d) 1, 2 and 4

Vimal Swarnkar · Accepted Answer

(c) 1, 2 and 3. Ni²⁺ = 3d⁸. Octahedral with NH₃: inner 3d has no two empty orbitals, so sp³d² (outer 4d) → outer-orbital complex. 2 unpaired e⁻ → paramagnetic (μ ≈ 2.83 BM). 1 ✔ 2 ✔ 3 ✔ 4 ✘ → (c).

Answer

(a) 1 and 2 only

Answer

(b) 2 and 3 only

Answer

(d) 1, 2 and 4

Geo-Scientist Prelims 2020 Chemistry Q19: Consider the following statements for the complex [Ni(NH₃)₆]Cl₂:

QuestionCoordination / VBT