In which of the following molecules or ions does the underlined element have an oxidation number of -3?

Name: In which of the following molecules or ions does the underlined element have an oxidation number of -3?
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Question

Quizplus · Accepted Answer

In PH₄⁺, phosphorus (P) has an oxidation number of -3. This is because hydrogen typically has an oxidation number of +1, and the overall charge of the ion is +1, leading to P having -3 to balance the charges.

In Which of the Following Molecules or Ions Does the Underlined