Identify the balanced chemical reaction of sodium chloride and sulphuric acid:

concept - A balanced equation is the one in which the number of each type of atom is the same on both the reactant and product side.
In the equation , we have 2 sodium atoms on the left-hand side and 2 sodium atoms on the right-hand side, so sodium atoms are balanced. 
Now there are 2 chlorine atoms on the reactant side which are balanced by 2 chlorine atoms on the product side. 
Also, the number of hydrogen atoms and oxygen atoms is balanced in this equation.

Therefore, from the given equation the only balanced chemical equation is-