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Question
In which of the following species, the oxidation number of the atom of the underlined elements is/are equal to +1?
Options
\[\ce{\underline{S}_2O^{2-}3, \underline{P}_3O^{3-}9}\]
\[\ce{\underline{P}_3O^{3-}9, \underline{N}_2O}\]
\[\ce{\underline{H}_3PO_2, \underline{Fe}_2O_3}\]
\[\ce{\underline{N}_2O, H_3\underline{P}O_2}\]
MCQ
Solution
\[\ce{\underline{N}_2O, H_3\underline{P}O_2}\]
Explanation:
\[\ce{\underline{N}_2O}\]
2x – 2 = 0
⇒ x = +1
\[\ce{H3\underline{P}O2}\]
3 (1) + x + 2 (–2) = 0
⇒ x = 4 – 3 = +1
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Oxidation Number - Introduction
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