A reaction of cobalt(III) chloride and ethyl... | Coordination Compounds

JEE MAIN 2019

10-01-2019 S2

Question

A reaction of cobalt (III) chloride and ethylenediamine in a 1 : 2 mole ratio generates two isomeric products A (violet coloured) and B (green coloured). A can show optical activity, but, B is optically inactive. What type of isomers does A and B represent?

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Ionisation isomers

Coordination isomers

Geometrical isomers

Linkage isomers

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Solution

$\left[\mathrm{CoCl}_6\right]^{3-}+2(\mathrm{en}) \longrightarrow\left[\mathrm{CoCl} 2(\mathrm{en})_2\right]^{+}$ (1 : 2 mole ratio) (cis-trans isomer) A - optically active (cis-isomer) B - optically inactive (trans isomer)

Question Tags

JEE Main

Chemistry

Medium

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