COMEDK 2026 Afternoon Shift | Coordination Compounds Question 2 | Chemistry

$$ \text { Column I } $$		$$ \text { Column I } $$
A	$$ \left[\mathrm{Pt}\left(\mathrm{NH}_3\right)_2 \mathrm{Cl}_2\right] $$	P	fac-mer
B	$$ \mathrm{Ni}\left[\left(\mathrm{NH}_3\right)_2 \mathrm{Cl}_2\right] $$	Q	cis -trans
C	$$ \left[\mathrm{Co}\left(\mathrm{NH}_3\right)_3\left(\mathrm{NO}_2\right)_3\right] $$	R	only cis isomer shows optical isomerism
D	$$ \left[\mathrm{Pt} \mathrm{Cl}_2(\mathrm{en})_2\right]^{2+} $$	S	does not exhibit isomerism.

$$ A-S \quad B-R \quad C-Q \quad D-P $$

$$ A-S \quad B-P \quad C-Q \quad D-R $$

$$ A-Q \quad B-S \quad C-O \quad D-R $$

$$ A-R \quad B-P \quad C-S \quad D-Q $$

COMEDK 2026 Morning Shift

MCQ (Single Correct Answer)

-0

The Crystal Field Stabilisation energy of (i) $\left[\mathrm{CoF}_6\right]^{3-}$ and (ii) $\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}$ are ⋯and ⋯⋯ respectively.

(i) $-2.8 \Delta_0$ (ii) $-2.4 \Delta_0$

(i) $2.8 \Delta_0$ (ii) $2.4 \Delta_0$

(i) $-0.6 \Delta_0$ (ii) $0.4 \Delta_0$

(i) $-0.4 \Delta_0$ ii) $0 \Delta_0$

COMEDK 2025 Evening Shift

MCQ (Single Correct Answer)

-0

Arrange the complex ions in the increasing order of their magnetic moments

A. $\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$
B. $\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-}$
C. $\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{3-}$
D. $\left[\mathrm{FeF}_6\right]^{3-}$

$\mathrm{D}<\mathrm{A}<\mathrm{B}<\mathrm{C}$

$\mathrm{B}<\mathrm{C}<\mathrm{A}<\mathrm{D}$

$\mathrm{D}<\mathrm{C}<\mathrm{B}<\mathrm{A}$

$\mathrm{A}<\mathrm{D}<\mathrm{C}<\mathrm{B}$

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