Coordination CompoundHard
Question
Which of the following complex will show optical activity ?
Options
A.trans -[Co(NH3)4Cl2]+
B. [Cr(H2O)6]3+
C.cis -[Co(NH3)2(en)2]3+
D.trans -[Co(NH3)2(en)2]3+
Solution
(A) trans-[Co(NH3)4Cl2]+ has plane of symmetry as well as centre of symmetry. Hence it does not show optical isomerism.
(B) [Cr(H2O)6]3+ has plane of symmetry as well as centre of symmetry. Hence it does not show optical isomerism.
(C) (C) cis-[Co(NH3)2(en)2]3+ lacks one of the symmetry elements.
(D) trans-[Co(NH3)2(en)2]3+ has plane of symmetry as well as centre of symmetry. Hence it does not show optical isomerism.
(B) [Cr(H2O)6]3+ has plane of symmetry as well as centre of symmetry. Hence it does not show optical isomerism.
(C) (C) cis-[Co(NH3)2(en)2]3+ lacks one of the symmetry elements.
(D) trans-[Co(NH3)2(en)2]3+ has plane of symmetry as well as centre of symmetry. Hence it does not show optical isomerism.
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