AIIMS2017ChemistryCoordination Compounds
Among the following, the compound that is both paramagnetic and coloured is
Options
- AK ₂ Cr ₂ O ₇
- B( NH ₄ )₂ [ TiCl ₆ ]
- CVOSO ₄
- DK ₃ [ Cu ( CN )₄ ]
Correct answer
C. VOSO ₄
Step-by-step solution
aligned & K ₂ Cr ₂ O ₇ Cr ⁺⁶: 3 d^0 & ( NH ₄ )₂ [ TiCl ₆ ] Ti ⁺⁴: 3 d^0 & VOSO ₄ V ⁺⁴: 3 d^1 & ~K ₃ [ Cu ( CN )₄ ] Cu ⁺: 3 d¹⁰ aligned VOSO ₄ , due to the presence of one unpaired electron, is paramagnetic and coloured.