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Mention two possible ways by which ammonia produced is removed from unchanged gases.
List the properties of ammonia that make it
(i) A good refrigerant
(ii) A cleaning agent
(iii) As a source of hydrogen
Describe two tests to identify ammonia and ammonium ions in an aqueous solution.
The diagram shows a simple arrangement of the fountain experiment:

(i) Name the two gases you have studied which can be used in this experiment
(ii) What is the common properly demonstrated by this experiment
State one relevant observation of burning of ammonia in air.
Given one test can be used to detect the presence of the ion produced
What do you observe when Ammonia in excess is mixed with chlorine.
What do you observe when Ammonia solution is added drop by drop and then in excess to aqueous copper sulphate solution.
Write an equation to illustrate the reducing nature of ammonia.
