Solved

Choose the INCORRECT Oxidation State

Question 96

Multiple Choice

Choose the INCORRECT oxidation state.

A) C is 0 in H₂CO
B) S is +4 in H₂SO₃
C) C is +2 in HCOOH
D) Fe is +2 in Fe₂O₃
E) Mn is +7 in KMnO₄

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