Classification of Salts


 
 
Concept Explanation
 

Classification of Salts

Classification of Salts:

The different types of salts are: normal salt, acid salt, basic salt and double salt.

1.  Neutral Salt: A salt that does not contain any replaceable hydrogen atoms or hydroxyl groups is called a normal salt. Example:  Na2 SO4 obtained in the reaction between large H_2SO_4 and NaOH is a normal salt because it is formed by the complete replacement of both the H atoms of large H_2SO_4. Similarly, calcium sulphate large (CaSO_4), sodium phosphate (large Na_3PO_4) and potassium phosphate (large K_3PO_4) are also normal salts.

2. Acid Salt: When an acid is not completely neutralized by a base, the salt produced will contain replaceable hydrogen atoms. Hence, it may further take part in the reaction with the base as an acid. Such a salt is called an acid salt. For example, the salt large NaHSO_4 produced in the reaction between NaOH and large H_2SO_4is an acid salt because it is capable of further reaction with the base NaOH to produce the normal salt large Na_2SO_4.

H_2SO_4 + NaOH rightarrow NaHSO_4 + H_20

NaHSO_4 + NaOH rightarrow Na_2SO_4 + H_20

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Sample Questions
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Question : 1

 Salts formed by the reaction of a weak acid with a strong base are called _______________ .

Right Option : A
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Question : 2

Basic salts are formed by neutralisation of _________________

Right Option : D
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Question : 3

Which of the following are correct ?

(a) Salts formed by the reaction of strong acid with a strong base are called neutral salts.

(b) Salts formed by the reaction of a weak acid with a strong base are called basic salts.

Right Option : C
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