Which of the following does not have optical isomer?

Question

Which of the following does not have optical isomer? (A) [ Co ( NH 3)3 Cl 3] (B) [ Co ( en )3]3+ (C) [ Co ( en )2 Cl 2] Cl (D) [ Co ( en )( NH 3)2 Cl 2] Cl

Tardigrade Admin · Accepted Answer

Octahedral complexes of type [M a2 b2 c2], [M a b c d e f],[M(A A)3],[M(A A)2 a2], [M(A A) a2 b2],[M(A A)2 a b] and [M(A B)3] show optical isomerism due to asymmetric molecules. Octahedral complexes of type [M a4 b2] and [ Ma 3 b 3] do not show optical isomerism due to presence of plane of symmetry. Hence [ Co ( NH )3 Cl 3] will not show optical isomerism.

Q. Which of the following does not have optical isomer?

$[C o (N H_{3})_{3} C l_{3}]$

$[C o (e n)_{3}]^{3 +}$

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

$[C o (e n) (N H_{3})_{2} C l_{2}] Cl$

Q. Which of the following does not have optical isomer?

[Co(NH3​)3​Cl3​]

[Co(en)3​]3+

[Co(en)2​Cl2​]Cl

[Co(en)(NH3​)2​Cl2​]Cl

$[C o (N H_{3})_{3} C l_{3}]$

$[C o (e n)_{3}]^{3 +}$

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

$[C o (e n) (N H_{3})_{2} C l_{2}] Cl$