JEE Main 2024 Chemistry question
Number of complexes with even number of electrons in t₂g orbitals is – [Fe(H₂O)₆]²⁺, [Co(H₂O)₆]²⁺, [Co(H₂O)₆]³⁺, [Cu(H₂O)₆]²⁺, [Cr(H₂O)₆]²⁺
Answer: (B)
Solution
t₂g electrons: Fe²⁺ 4, Co²⁺ 5, Co³⁺ 6, Cu²⁺ 6 and Cr²⁺ 3; an even number occurs in Fe²⁺, Co³⁺ and Cu²⁺.