Question

Ammonium chloride and sodium chloride can be distinguished by heating them with an ______ (acid/alkali).

Answer 1

Ammonium chloride and sodium chloride can be distinguished by heating them with an alkali.

Explanation:

Ammonium chloride (NH₄Cl) reacts upon heating with an alkali (like sodium hydroxide, NaOH) to liberate ammonia gas (NH₃), which has a characteristic sharp, pungent smell and turns moist red litmus paper blue. In contrast, sodium chloride (NaCl) does not undergo any reaction or evolve gas when heated with an alkali.