ICSE Class 10 Chemistry
Question 10 of 69
Study of Compounds — Ammonia — Question 28
Back to all questions 28
Question Question 28
Name an ammonium salt which is a constituent of
(a) smelling salts
(b) dry cells.
Give reasons for the use of the named ammonium salt for the same.
(a) Ammonium Carbonate, [(NH4)2CO3] is used as smelling salt. It dissociates evolving pungent ammonia gas and hence is used as a constituent for smelling salts.
(NH4)2CO3 ⟶ 2NH3 + CO2 + H2O
The pungent smelling NH3 gas revives a fainted person.
(b) Ammonium Chloride (NH4Cl) is used in dry cells. It oxidizes Zn to Zn2+ ions. The electrons so produced constitute the electric current.