Given below are two statements : Statement I: [ Co ( NH 3 ) 6 ] 3+ is a homoleptic complex whereas [ Co ( NH 3 ) 4 Cl 2 ] + is a heteroleptic complex. Statement II : Complex [ Co ( NH 3 ) 6 ] 3+ has only one kind of ligands but [ Co ( NH 3 ) 4 Cl 2 ] + has more than one kind of ligands. In the light of the above statements, choose the correct answer from the options given below.

Both Statement I and Statement II are true

Both Statement I and Statement II are false

Statement I is true but Statement II is false

Statement I is false but Statement II is true

Chemistry · Coordination Compounds

NEET (UG) 2024 — Question 92

Given below are two statements :

Statement I: $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}$ is a homoleptic complex whereas $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]^{+}$ is a heteroleptic complex.

Statement II : Complex $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}$ has only one kind of ligands but $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]^{+}$ has more than one kind of ligands.

In the light of the above statements, choose the correct answer from the options given below.

Option A:
Both Statement I and Statement II are true
Correct
Option B:
Both Statement I and Statement II are false
Option C:
Statement I is true but Statement II is false
Option D:
Statement I is false but Statement II is true

Answer: A

Step-by-step solution

$\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}$ is a homoleptic complex as only one type of ligands $\left(\mathrm{NH}_{3}\right)$ is coordinated with

$\mathrm{Co}^{3+}$ ion. While $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]^{+}$ is a heteroleptic complex in which $\mathrm{Co}^{3+}$

ion is ligated with more than one type of ligands, i.e., $\mathrm{NH}_{3}$ and $\mathrm{Cl}^{-}$ .

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Exam: NEET (UG) 2024
Paper: 2024 paper
Subject: Chemistry
Chapter: Coordination Compounds
Topic: Fundamentals of Co-ordination Compounds

Answer: A

Step-by-step solution

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