MH SET 2023 Paper 2 Chemical Sciences Question Paper (26-Mar-2023)

Question 1

The complex [FeF6]3– is colorless, whereas [CoF6]3– is colored; this is because :

Accepted Answer

Spin forbidden transitions in [FeF6]3– and spin allowed transitions in [CoF6]3–

Answer

Both are high spin complexes

Answer

Spin-allowed transitions in [FeF6]3– and spin-forbidden transitions in [CoF6]3–

Answer

[FeF6]3– is low spin complex, and [CoF6]3– is high spin complex

Question 2

The species with the lowest Valence Electron (VE) count is :

Accepted Answer

[AuCl4]–

Answer

[V(CO)6]–

Answer

[Cu(MA3)6]2+

Answer

[Zn(en)3]2+

Question 3

The Wade’s rules can be applied to the naked clusters of p-block elements. According to Wade’s rules, the number of skeletal electrons in Pb52– cluster is :

Accepted Answer

12

Answer

18

Answer

22

Answer

8

Question 4

In an axially symmetric field, NQR transition/s expected for nuclear spin quantum number I = 7/2 is/are :

Accepted Answer

3

Answer

1

Answer

2

Answer

4

Question 5

${}^{31}\mathrm{P}-\{{}^{1}\mathrm{H}\}$ spectrum of diamagnetic complex mer–RhCl3 (PEt3)3 would show (${}^{103}\mathrm{Rh}$, ${}^{31}\mathrm{P}$; I = $\frac{1}{2}$)

Accepted Answer

doublet of doublet and doublet of triplet

Answer

a doublet

Answer

a triplet

Answer

triplet of doublet and doublet of doublet

MH SET 2023 Paper 2 Chemical Sciences Question Paper (26-Mar-2023)

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