Acidic Oxides and Cobalt Valency (Jee Mains)

Group 15 & 16 Elements

Medium

Acidic Oxides and Cobalt Valency

'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 :

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