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ICSE Class 10 Chemistry 2022 Paper

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Question : 35 of 55
Marks: +1, -0
Complete the table given below which refers to the Laboratory preparation of Ammonia gas :
 Laboratory preparation  Reactants used  Products formed  Dryingagent  Method of collection
 Ammonia gas  (a)............  Calcium chloride + water + ammonia  (b).............  (c).............
Solution:  
(a) Ammonium chloride (NH4Cl)+(\mathrm{NH}_4\mathrm{Cl}) + calcium hydroxide Ca(OH)2\mathrm{Ca}(\mathrm{OH})_2
(b) Quick lime or calcium oxide (CaO)(\mathrm{CaO})
(c) Downward displacement of air
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