JEE Main202325 Jan 2023Evening ShiftChemistryCoordination CompoundsActual
Match List I with List II List I Coordination entity List II Wavelength of light absorbed in nm A CoCl NH 3 5 2 + I. 310 B Co NH 3 6 3 + II. 475 C Co ( CN ) 6 3 - III. 535 D Cu H 2 O 4 2 + IV. 600 Choose the correct answer from the options given below :-
Options
- AA - IV ,   B - I ,   C - III ,   D - II
- BA - III ,   B - II ,   C - I ,   D - IV
- CA - III ,   B - I ,   C - II ,   D - IV
- DA -   II ,   B - III ,   C - IV ,   D - I
Correct answer
B. A - III ,   B - II ,   C - I ,   D - IV
Step-by-step solution
Co-ordination compounds absorb a particular wavelength following certain rules. Wavelength of light absorbed    ∝   1 Oxidation state of metal ion ∝   1 Strength of ligand Ligand field strength - CN -   >   NH 3   >   H 2 O   >   Cl - List I Coordination entity List II Wavelength of light absorbed in nm A CoCl NH 3 5 2 + I. 535 B Co NH 3 6 3 + II. 475 C Co ( CN ) 6 3 - III. 310 D Cu H 2 O 4 2 + IV.