NEET UG CHEMISTRY MCQ: CHEMICAL BONDING & MOLECULAR STRUCTURE

1 Hard

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Application +4 | -1

The hybridization and magnetic behaviour of cobalt ion in

\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}

complex, respectively is

View answer and explanation

Correct option: D

\mathrm{d}^{2} \mathrm{sp}^{3}

and diamagnetic

Option D (

\mathrm{d}^{2} \mathrm{sp}^{3}

and diamagnetic) is correct because in the complex

[Co(NH_3)_6]^{3+}

, cobalt is in +3 oxidation state, leading to a

d^6

configuration.

NH_3

is a strong field ligand, causing pairing of electrons and resulting in

d^2sp^3

hybridization and a diamagnetic nature.

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