Oxidation-Reduction Reactions

AP Chemistry· difficulty 2/5

Oxidation number of S in SO₄²⁻ is

  • A

    +4

  • B

    +6

    check_circle
  • C

    −2

  • D

    +2

Explanation

O is −2 each (×4 = −8); total charge is −2 → S = +6.

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