JEE Main 2023 (Online) 24th January Evening Shift | Coordination Compounds Question 81 | Chemistry | JEE Main - ExamSIDE.com

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1

JEE Main 2023 (Online) 24th January Evening Shift

MCQ (Single Correct Answer)

+4

-1

The hybridization and magnetic behaviour of cobalt ion in $$\mathrm{[Co(NH_3)_6]^{3+}}$$ complex, respectively is :

A

$$\mathrm{sp^3d^2}$$ and paramagnetic

B

$$\mathrm{sp^3d^2}$$ and diamagnetic

C

$$\mathrm{d^2sp^3}$$ and diamagnetic

D

$$\mathrm{d^2sp^3}$$ and paramagnetic

2

JEE Main 2023 (Online) 24th January Evening Shift

MCQ (Single Correct Answer)

+4

-1

Which of the following cannot be explained by crystal field theory?

A

The order of spectrochemical series

B

Stability of metal complexes

C

Magnetic properties of transition metal complexes

D

Colour of metal complexes

3

JEE Main 2023 (Online) 24th January Morning Shift

MCQ (Single Correct Answer)

+4

-1

The primary and secondary valencies of cobalt respectively in $$\mathrm{[Co(NH_3)_5Cl]Cl_2}$$ are :

A

2 and 8

B

2 and 6

C

3 and 5

D

3 and 6

4

JEE Main 2022 (Online) 29th July Evening Shift

MCQ (Single Correct Answer)

+4

-1

Octahedral complexes of copper(II) undergo structural distortion (Jahn-Teller). Which one of the given copper (II) complexes will show the maximum structural distortion? (en - ethylenediamine; $$\mathrm{H}_{2} \mathrm{~N}_{-} \mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{NH}_{2}$$)

A

$$\left[\mathrm{Cu}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{SO}_{4}$$

B

$$\left[\mathrm{Cu}(\mathrm{en})\left(\mathrm{H}_{2} \mathrm{O}\right)_{4}\right] \mathrm{SO}_{4}$$

C

cis-$$\left[\mathrm{Cu}\left(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]\right.$$

D

trans-$$\left[\mathrm{Cu}\left(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]\right.$$

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