Simplified absorption spectra of three complexes ((i) and (ii) and (iii)) of M+n ion are provided be — JEE Mains Chemistry Past Papers Chemistry Question
Question
Simplified absorption spectra of three complexes ((i) and (ii) and (iii)) of M+n ion are provided below; their max values are marked as A, B and C respectively. The correct match between the complexes and their max values is: Absorption max max max Wavelength (nm) A B C (i) [M(NCS)6](–6 + n) (ii) [MF6](–6 + n) (iii) [M(NH3)6]n+ (A) A-(i), (B)-(ii), C-(iii) (B) A-(ii), (B)-(iii), C-(i) (C) A-(ii), (B)-(i), C-(iii) (D) A-(iii), (B)-(i), C-(ii)
💡 Solution & Explanation
Stronger the ligand greater is splitting of d orbitals and smaller will be wave length of light absorbed. The splitting power of ligands is NH3 > S NC > F– So order of wave length of light absorbed is – F S NC NH