Chemistry
(a) Is ammonia more dense or less dense than air?
(b) What property of ammonia is demonstrated by the Fountain Experiment?
(c) Write the balanced equation for the reaction between ammonia and sulphuric acid.
Ammonia
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Answer
(a) Ammonia is less dense than air because vapour density of ammonia is 8.5 and that of air is 14.4.
(b) Fountain Experiment demonstrates the high solubility of ammonia gas in water.
(c) 2NH3 + H2SO4 ⟶ (NH4)2SO4
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Related Questions
Correct the following:
(a) A reddish-brown precipitate is obtained when ammonium hydroxide is added to ferrous sulphate.
(b) Liquid ammonia is a solution of NH3.
(c) Finely divided platinum is used in Haber's Process.
(d) Conc. H2SO4 is a drying agent for NH3.
(e) Ammonium salts, on heating, decompose to give ammonia.
Choose the correct from the following:
Ammonia can be obtained by adding water to
A : Ammonium chloride.
B : Ammonium nitrite.
C : Magnesium nitride.
D : Magnesium nitrate
Pick the odd member from the list giving reasons:
(a) Ammonia, sulphur dioxide, hydrogen chloride, carbon dioxide.
(b) Copper oxide, aluminium oxide, sodium oxide, magnesium oxide.
Give reasons for the following —
(a) Liquid ammonia is used as a refrigerant in ice plants.
(b) Aqueous solution of ammonia is used for removing grease stains from woollen clothes.
(c) Aqueous solution of ammonia gives a pungent smell.
(d) Aqueous solution of ammonia conducts electricity.