RE-NEET2026Chemistry-Oxidation and Reduction
RE-NEET 2026 Chemistry Oxidation States MCQ Question
Type: MCQ-conceptual-Medium
The correct decreasing order of oxidation state of the underlined atom in each molecule is
A
N₂O₅ > Al₂O₃ > H₂S
B
PbO₂ > N₂O₃ > SO₃
C
P₄O₆ > Cl₂O₇ > AlH₃
D
P₄O₁₀ > SO₃ > H₂O
Correct Answer
Option D
Detailed Explanation
In P₄O₁₀, P has an oxidation state of +5; in SO₃, S has an oxidation state of +6; in H₂O, O has an oxidation state o. Thus, the correct order is P₄O₁₀ > SO₃ > H₂O.
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