1. As an acid – It undergoes neutralization reaction.
H2SO4(aq) + 2NaOH(aq) → Na2SO4(aq) + 2H2O(L)
2. As a dehydrating agent – It is able to remove water from compounds like sugar etc.
C6H12O6 → 6C
3. It displaces other acids from their salts:-
H2SO4(aq) + 2NaCL(aq) → Na2SO4(aq) + 2HCL(aq)