A Complex P of composition Cr ( H 2 O )6 Br n has a spin only magnetic moment of 3.83 BM. It reacts with AgNO3 and shows geometrical isomerism. The IUPAC nomenclature of P is

Question

A Complex P of composition Cr ( H 2 O )6 Br n has a spin only magnetic moment of 3.83 BM. It reacts with AgNO3 and shows geometrical isomerism. The IUPAC nomenclature of P is (A) Hexaaqua chromium (III) bromide (B) Dibromidotetraaqua chromium (IV) bromide dihydrate (C) Tetraaquadibromido chromium (IV) bromide dihydrate (D) Tetraaquadibromido chromium (III) bromide dihydrate

Tardigrade Admin · Accepted Answer

This compound can be identified and named as follows

This compound can be identified and named as follows

C r (H_{2} O)_{6} B r_{n}

As

(μ_{complex})_{spin} = 3.8

B.M.

= n (n + 2)

On solving

n = 3

Hence the complex is

[C r (H_{2} O)_{6}] B r_{3}

oxidation number of

C r = + 3

.

As compound also shows geometrical isomerism so it will be

[C r (H_{2} O)_{4} B r_{2}] B r .2 H_{2} O

It is named as

\to

Tetraaquadibromido chromium (III) bromide

dihydrate

Q. A Complex P of composition Cr(H2​O)6​Brn​ has a spin only magnetic moment of 3.83 BM. It reacts with AgNO3​ and shows geometrical isomerism. The IUPAC nomenclature of P is

Hexaaqua chromium (III) bromide

Dibromidotetraaqua chromium (IV) bromide dihydrate

Tetraaquadibromido chromium (IV) bromide dihydrate

Tetraaquadibromido chromium (III) bromide dihydrate

Q. A Complex P of composition $C r (H_{2} O)_{6} B r_{n}$ has a spin only magnetic moment of 3.83 BM. It reacts with $A g N O_{3}$ and shows geometrical isomerism. The IUPAC nomenclature of P is