Ammonia gas can be collected by the downward displacement ofA. waterB.

1.	Ammonia gas can be collected by the downward displacement ofA. waterB. airC. mercuryD. acid
Answer» Correct Answer - 2 Ammonia gas is prepared in the laboratory by heating ammonium chloride with slaked lime, `Ca(OH)_(2)`, in the ratio of `3:2`. The mixture is taken in a flask and the heated gently. The gas evolved is passed through lime tube and finally collected in a dry jar (because `NH_(3)` is highly soluble in `H_(2)O` by downward displacement of air (as `NH_(3)` is lighter than air).

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Ammonia gas can be collected by the downward displacement ofA. waterB. airC. mercuryD. acid

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