Answer: Coefficient for sulphuric acid is 1.
Step-by-step explanation:
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.
When an acid reacts with the base then it undergoes neutralization to form a salt and water.
The balanced reaction will be,

Thus coefficient for sulphuric acid is 1.