The nature of oxides and CrO is indexed as and type respectively. The correct set of X and Y is:

Question

The nature of oxides  and CrO is indexed as  and  type respectively. The correct set of X and Y is:

Canvas Classes · Accepted Answer

Nature of transition metal oxides depends on oxidation state:
- Low O.S. → Basic
- Intermediate O.S. → Amphoteric
- High O.S. → Acidic

: V = +3 (low) → Basic

CrO: Cr = +2 (low) → Basic

Comparison of Cr oxides:

| Oxide | Cr O.S. | Nature |
|-------|---------|--------|
| CrO | +2 | Basic |
|  | +3 | Amphoteric |
|  | +6 | Acidic |

Both  and CrO are in low oxidation states → both basic.

Answer: Option (3) — X = basic, Y = basic

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