Final answer:
It carries a formal charge of +2. Thus, the correct answer to the question is D. +2. The formal charge on sulfur in sulfuric acid (H2SO4) is +2, taking into account its bonding and valence electrons.
Step-by-step explanation:
The formal charge on sulfur in sulfuric acid (H2SO4) can be calculated by considering the valence electrons and the structure of the molecule. Sulfur has six valence electrons, and in sulfuric acid, it forms six bonds (four with oxygen and two with hydrogen).
According to Figure 6.5.12, we see that sulfur in sulfates has four electrons around it from its bonds, which is two electrons more than its normal valence number. Therefore, it carries a formal charge of +2. Thus, the correct answer to the question is D. +2.