JEE Main 2025 Chemistry question
Match List-I with List-II List-I (Complex): (A) [CoF6]³⁻ (B) [NiCl4]²⁻ (C) [Co(NH3)6]³⁺ (D) [Ni(CN)4]²⁻
List-II (Hybridisation of central metal ion): (I) (II) (III) (IV)
Choose the correct answer from the options given below:
Answer: (2)
Solution
[CoF6]³⁻: sp³d² (weak field); [NiCl4]²⁻: sp³ (tetrahedral); [Co(NH3)6]³⁺: d²sp³ (strong field); [Ni(CN)4]²⁻: dsp² (square planar)