JEE Main 2002 Chemistry question

The type of isomerism present in nitropentamine chromium (III) chloride is

(1)optical
(2)linkageCorrect
(3)ionization
(4)polymerisation

Answer: (2)

Solution

Nitropentaamminechromium(III) chloride is [Cr(NH_3)_5(NO_2)]Cl_2. The ligand is ambidentate: it can bind through N (nitro) or through O (nitrito, ONO). This gives linkage isomerism, option (2). The octahedral

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Question ID VK-037975