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, +7
E) -1, -2, +3
Answer: B
Chemistry MC
Chemistry Chapter 4
The oxidation numbers of P, S and Cl in H₂PO₂⁻, H₂S and KClO₄ are, respectively