NCERT Solution for Class Tenth Science Chapter 2
Acids, Bases and Salts
Exercises Questions
Page No-19
Questions No-14
What is a neutralisation reaction? Give two examples.
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NCERT Solution for Class Tenth Science Chapter 2
Acids, Bases and Salts
Exercises Questions
Page No-19
Questions No-14
A reaction in which an acid and base react with each other to form salt and water is known as neutralisation reaction. During this reaction energy is evolved in the form of heat.
For example:
(i) sodium hydroxide a strong base reacts with strong acid hydrochloric acid produces neutral salt sodium chloride and water molecules.
NaOH + HCl –> NaCl + H₂O
(ii) In case of indigestion which caused due to the excess production of hydrochloric acid in the stomach resulting in acidity, to neutralise the effect of acid an antacid, Mg(OH)₂ which is basic in nature is given, thus gives relief from indigestion.
Mg(OH)₂ + 2HCl –> MgCl₂ + 2H₂O
A neutralization reaction is when an acid and a base react to form water and a salt and involves the combination of H+ ions and OH– ions to generate water. The neutralization of a strong acid and strong base has a pH equal to 7. for example: HCl + NaOH → NaCl + H2O