KCET2024ChemistryCoordination Compounds
Match the following. Codes
Options
- AI (i) II (ii) III (iii)
- BI (ii) II (iii) III (i)
- CI (ii) II (i) III (iii)
- DI (i) II (iii) III (ii)
Correct answer
B. I (ii) II (iii) III (i)
Step-by-step solution
The correct match is I-(ii), II-(iii), III-(i) - Zn ²⁺(Z=30) The outer electronic configuration of Zn ²⁺ is 3 d¹⁰ . Thus, it has no unpaired electrons. Hence, it is colourless. - Cu ²⁺(Z=29) The outer electronic configuration of Cu ²⁺ is 3 d^9 . Hence, it contains one unpaired electron. So, = 1(1+2) =1.73 BM - Ni ²⁺(Z=28) The outer electronic configuration of 4 d^8 Ni ²⁺ is 3 d^8 . Hence, its configuration is d^8 .