The Oxidation Numbers of P, S, and Cl in H₂PO₂^-

question 111

Multiple Choice

The oxidation numbers of P, S, and Cl in H₂PO₂^-, H₂S, and KClO₄ are, respectively

• A)−1, −1, +3.
• B)−1, −2, +7.
• C)+1, −2, +7.
• D)−1, −2, +3.
• E)+1, +2, +7.

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