NEETChemistryCoordination Compounds
Given below are two statements: Assertion (A): Square planar complexes of type MABCD do not exhibit optical isomerism. Reason (R): Square planar complexes possess a plane of symmetry containing the central metal atom and all four ligands. In the light of the above statements, choose the most appropriate answer from the options given below:
Options
- ABoth (A) and (R) are correct and (R) is the correct explanation of (A)
- BBoth (A) and (R) are correct but (R) is not the correct explanation of (A)
- C(A) is correct but (R) is not correct
- D(A) is not correct but (R) is correct
Correct answer
A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
Step-by-step solution
Optical isomerism is exhibited by chiral molecules, which lack a plane of symmetry. In square planar complexes of the type MABCD , all four ligands and the central metal atom lie in the same plane. This molecular plane itself acts as a plane of symmetry. Since the molecule is superimposable on its mirror image, it is achiral and does not exhibit optical isomerism. Therefore, both Assertion (A) and Reason (R) are correct, and (R) is the correct explanation of (A). Answer: Both (A) and (R) are correct and (R) is the