Q. Given below are two statements: Statement-I : [Fe(ox)₃]³⁻ is chiral. Statement-II : trans-[Cr(H₂O)₂(ox)₂]⁻ is chiral. (Given : oxH₂ = HOOC–COOH) In light of the above statements, choose the most appropriate answer from the options given below:
A) Statement I is incorrect but Statement II is correct
B) Both Statement I and Statement II are correct
C) Both Statement I and Statement II are incorrect
D) Statement I is correct but Statement II is incorrect
Explanation
[Solution from source] A tris(chelate) octahedral complex such as [Fe(ox)₃]³⁻ has no mirror plane and exists as Δ and Λ enantiomers, so it is chiral. In the trans bis(oxalato) complex the two oxalates lie in one plane, which is a mirror plane, so it is achiral; only the cis isomer is optically active. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.