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  • Complex X of composition  has a spin only magnetic moment of 3.

Complex X of composition Cr(H_{2}O)_{6}Cl_{n} has a spin only magnetic moment of 3.83 BM. It reacts with AgNO_{3} and shows geometrical isomerism. The IUPAC nomenclature of X is:

Option: 1

Tetraaquadichlorido chromium (IV) chloride dihydrate


Option: 2

Hexaaqua chromium (III) chloride

 


Option: 3

Dichloridotetraaqua chromium (IV) chloride dihydrate


Option: 4

Tetraaquadichlorido chromium (III) chloride dihydrate


Answers (1)

best_answer

\mathrm{Cr}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6} \mathrm{Cl_n}; \quad \left(\mu_{\text {complex }}\right) \text {spin }=3.8 \ \mathrm{B.M}

From data of magnetic moment oxidation number of Cr should be +3
Hence complex is Cr(H2O)6Cl3.

Complex shows geometrical isomerism therefore formula of the complex is [Cr(H2O)4Cl2]Cl.2H2O.

Its IUPAC Name: Tetraaquadichloridochromium(III) chloride dihydrate

Hence, the option number (4) is correct.

Posted by

Pankaj

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