JEE Main 2025 (Online) 4th April Morning Shift | Coordination Compounds Question 13 | Chemistry

Number of stereoisomers possible for the complexes, $\left[\mathrm{CrCl}_3(\mathrm{py})_3\right]$ and $\left[\mathrm{CrCl}_2(\mathrm{ox})_2\right]^{3-}$ are respectively $(p y=$ pyridine,$o x=$ oxalate $)$

3 & 3

2 & 3

1 & 2

2 & 2

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MCQ (Single Correct Answer)

-1

Identify the diamagnetic octahedral complex ions from below ;

A. $\left[\mathrm{Mn}(\mathrm{CN})_6\right]^{3-}$

B. $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$

C. $\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-}$

D. $\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_3 \mathrm{~F}_3\right]$

Choose the correct answer from the options given below:

B and C Only

A and C Only

B and D Only

A and D Only

JEE Main 2025 (Online) 3rd April Morning Shift

MCQ (Single Correct Answer)

-1

The correct order of the complexes $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{H}_2 \mathrm{O}\right)\right]^{3+}(\mathrm{A}),\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}(\mathrm{B}),\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}(\mathrm{C})$ and $\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+}(\mathrm{D})$ in terms of wavelength of light absorbed is

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

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

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

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

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