JEE Main 2021 — Coordination Compounds Question with Solution
From: JEE Main 2021 (Online) 26th February Evening Shift
Question
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Show full solutionCorrect answer: 3
Step-by-step explanation
The coordination compound [Co(ox)2(Br)(NH3)]2 of general formula [M(A - A)2BC] can show both geometrical and optical isomerism (stereoisomerism).

The cis-form produces non-superimposable mirror images, i.e. enantiomeric pairs (optically active)

The trans-form is optically inactive.
So, total number of stereoisomers possible
= cis( ) + trans = 3
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