Oxidation state of S in H2SO4 is

The oxidation state of S in H2SO4 can be calculated as follows:

1. Hydrogen generally has an oxidation state of +1. Since there are two hydrogen atoms, the total oxidation state from hydrogen is +2.

2. Oxygen generally has an oxidation state of -2. Since there are four oxygen atoms, the total oxidation state from oxygen is -8.

3. The sum of the oxidation states in a neutral molecule is zero. Therefore, the oxidation state of sulfur (S) can be calculated by balancing the equation:

   +2 (from H) + X (from S) - 8 (from O) = 0

Solving for X gives the oxidation state of sulfur as +6. Therefore, the oxidation state of S in H2SO4 is +6.