Hydrogen can exhibit multiple oxidation states depending on the nature of the element it bonds with. — Hydrogen Chemistry Question

💡 Solution & Explanation

Hydrogen exhibits a $+1$ oxidation state in compounds with more electronegative elements (like $HCl$), a $-1$ oxidation state in metal hydrides (like $NaH$), and a $0$ oxidation state in its elemental form ($H_2$). The sum is $(+1) + (-1) + 0 = 0$.