Question

Give reasons for the following:
An aqueous solution of the salt ammonium chloride is acidic in nature while an aqueous solution of sodium chloride is neutral.

  • Acids Bases and Salts
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Answer

As ammonium chloride is a salt of a weak alkali and strong acid, hence it’s aqueous solution is acidic in nature. On the other hand, sodium chloride is a product of strong alkali and strong acid hence, it’s aqueous solution is neutral in nature.

Neutralization reaction Base + Acid Salt + water Nature
Weak alkali + strong acid NH4OH + HCl ⟶ NH4Cl + H2O acidic
Strong alkali + strong acid NaOH + HCl ⟶ NaCl + H2O neutr

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