JEE Main 2025 (Online) 4th April Morning Shift | Coordination Compounds Question 50 | Chemistry

1

JEE Main 2025 (Online) 4th April Morning Shift

MCQ (Single Correct Answer)

+4

-1

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 $)$

A

3 & 3

B

2 & 3

C

1 & 2

D

2 & 2

2

JEE Main 2025 (Online) 3rd April Evening Shift

MCQ (Single Correct Answer)

+4

-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:

A

B and C Only

B

A and C Only

C

B and D Only

D

A and D Only

3

JEE Main 2025 (Online) 3rd April Morning Shift

MCQ (Single Correct Answer)

+4

-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

A

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

B

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

C

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

D

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

4

JEE Main 2025 (Online) 3rd April Morning Shift

MCQ (Single Correct Answer)

+4

-1

$$ \text { Match the LIST-I with LIST-II } $$

LIST-I (Molecules/ion)		LIST-II (Hybridisation of central atom)
A.	$$ \mathrm{PF}_5 $$	I	$$ \mathrm{dsp}^2 $$
B	$$ \mathrm{SF}_6 $$	II	$$ \mathrm{sp}^3 \mathrm{~d} $$
C	$$ \mathrm{Ni}(\mathrm{CO})_4 $$	III	$$ \mathrm{sp}^3 \mathrm{~d}^2 $$
D	$$ \left[\mathrm{PtCl}_4\right]^{2-} $$	IV	$$ \mathrm{sp}^3 $$

$$ \text { Choose the correct answer from the options given below: } $$

A

A-IV, B-I, C-II, D-III

B

A-III, B-I, C-IV, D-II

C

A-II, B-III, C-IV, D-I

D

A-I, B-II, C-III, D-IV

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