Which of the following will give a pair of enantiomorphs? ( en = NH_2CH_2CH_2NH_2 ) - Chemistry MCQ Chemistry | ExamTest.live | ExamTest.live

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Which of the following will give a pair of enantiomorphs? (en = NH_{2} CH_{2} CH_{2} NH_{2})

A $[C o (N H_{3})_{4} C l_{2}] N O_{2}$
B $[C r (N H_{3})_{6}] [C o (CN)_{6}]$
C $[C o (e n)_{2} C l_{2}] Cl$
D $[Pt (N H_{3})_{4}] [PtC l_{6}]$

Solution & Step-by-step Explanation

Enantiomorphs (optical isomers) are formed by complexes that lack a plane of symmetry.In [C o (e n)_{2} C l_{2}]^{+}, the c i s -isomer is chiral and exists as a pair of enantiomorphs (dextro and laevo forms). The t r an s -isomer possesses a plane of symmetry and is optically inactive.Other options: [C o (N H_{3})_{4} C l_{2}]^{+} shows geometrical isomerism (c i s / t r an s) but no optical isomerism. [C r (N H_{3})_{6}] [C o (CN)_{6}] shows coordination isomerism. [Pt (N H_{3})_{4}] [PtC l_{6}] shows coordination isomerism.

Practice this question

Try it yourself before checking the explanation above.

Which of the following will give a pair of enantiomorphs? (en = NH_{2} CH_{2} CH_{2} NH_{2})

A

[C o (N H_{3})_{4} C l_{2}] N O_{2}

B

[C r (N H_{3})_{6}] [C o (CN)_{6}]

C

[C o (e n)_{2} C l_{2}] Cl

D

[Pt (N H_{3})_{4}] [PtC l_{6}]

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Coordination Compounds Isomerism Enantiomorphs

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