Q5 of 11 Page 56

Describe the process of neutralization with the help of an example.

The reaction between an acid and a base is known as neutralization. Neutralization reaction result in the formation of salt and water. During this reaction, energy in the form of heat is evolved.


Acid + Base Salt + Water + Heat


Example: When sodium hydroxide (NaOH) is added to hydrochloric acid (HCl), sodium chloride (NaCl) and water are obtained.



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ii. Sodium hydroxide turns blue litmus red. (T/F)


iii. Sodium hydroxide and hydrochloric acid neutralize each other and form salt and water. (T/F)


iv. Indicator is a stub stance which shows different colours in acidic and basic solutions. (T/F)


v. Tooth decay is caused by the presence of a base. (T/F)

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