Question

What do you mean by a neutralization reaction? How can a neutralization reaction be used to prepare common salt?

Answer 1

Neutralization reaction is the process in which an acid reacts with a base to produce salt and water while evolving a good amount of heat. In this reaction, both the acid and base loose their properties to produce a new substance which is neutral in nature, i.e., the salt formed will neither be acidic nor basic.
$\mathrm{Acid}+\mathrm{Base}\to \mathrm{Salt}+\mathrm{Water}\left[\mathrm{with}\mathrm{evolution}\mathrm{of}\mathrm{heat}\right]$

The preparation of common salt (sodium chloride) involves the neutralization reaction between hydrochloric acid and sodium hydroxide (base). The acid and base reacts to produce sodium chloride (salt), water and heat.

The reaction is represented by the following equation:
$\mathrm{HCl}+\mathrm{NaOH}\underset{}{\to }\mathrm{NaCl}+{\mathrm{H}}_2\mathrm{O}$