EasyRe-NEET 2026
+4 / -1
The correct decreasing order of oxidation state of the underlined atom in each molecule is
A
P₄O₁₀ > SO₃ > H₂O
B
N₂O₅ > Al₂O₃ > H₂S
C
PbO₂ > N₂O₃ > SO₃
D
P₄O₆ > Cl₂O₇ > AlH₃
Explanation
N₂O₅ ⇒ 2x + 5(−B) = 0 2x = 10 x = +5 Al₂O₃ ⇒ 2x + 3(−B) = 0 2x = 6 x = +3 H₂S ⇒ 2(+1) + x = 0 x = −2 ∴ N₂O₅ > Al₂O₃ > H₂S
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