What is the oxidation state of sulphur in ?

Answer and explanation

Correct answer: B. +6

  1. Step 1: In sulfuric acid (), hydrogen has an oxidation number of and each oxygen atom has an oxidation number of .
  2. Step 2: Set the sum of oxidation numbers equal to zero for the neutral molecule: .
  3. Step 3: Solving for sulfur yields .
Answer
+6.

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