JEE Main 2025 Chemistry question
'X' is the number of acidic oxides among VO₂, V₂O₃, CrO₃, V₂O₅ and Mn₂O₇. The primary valency of cobalt in [Co(H₂NCH₂CH₂NH₂)₃]₂(SO₄)₃ is Y. The value of X + Y is .
Answer: (4)
Solution
Among the oxides, only CrO₃ and Mn₂O₇ are acidic (X=2). Primary valency of Co in the complex is 3 (Y=3). X+Y=5.