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RE-NEET2026Chemistry-Oxidation and Reduction

RE-NEET 2026 Chemistry Oxidation States MCQ Question

Type: MCQ-conceptual-Medium-Class 11

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 $f^{-2}$ . Thus, the correct order is P₄O₁₀ > SO₃ > H₂O.

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