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प्रश्न
What happens when an acid reacts with a base? Explain by taking the example of hydrochloric acid and sodium hydroxide. Give equation of the chemical reaction which takes place. What is the special name of such a reaction?
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उत्तर
When an acid is treated with a base, the base neutralises the acid, thereby destroying its acidity. Since an acid and a base neutralise each other’s effect, the reaction between an acid and a base to form salt and water is called a neutralisation reaction.
\[\ce{Acid + Base -> Salt + Water}\]
When hydrochloric acid reacts with a sodium hydroxide solution, a neutralisation reaction occurs, forming sodium chloride and water.
\[\ce{\underset{(Base)}{\underset{Sodium hydroxide}{NaOH_{(aq)}}} + \underset{(Acid)}{\underset{Hydrochloric acid}{HCl_{(aq)}}} -> \underset{(Salt)}{\underset{Sodium chloride}{NaCl_{(aq)}}} + \underset{Water}{H2O_{(l)}}}\]
