What base neautralizes sulfuric acid?

A base is any oxide of a Group (I) or (II) metal ,such as K2O or MgO. As a general formula it is ' M2O ' or ' MO '.

NB Do not confuse a base with an alkali.

An alkali is a soluble base.

e.g.

M2O + H2O = 2MOH

or

MO + H2O = M(OH)2

'M' is the given metal.

NNB The general acid reactions are

Acid + Base = Salt + Water

Acid + Alkali = Salt + Water (again).

Also

Acid + metal = Salt + Hydrogen

Acid + Carbonate = Salt + Water + Carbon Dioxide.