ReasoningModerate1 mark
2(i)
A student was instructed by the teacher to prepare and collect ammonia gas in the laboratory by using aluminium nitride. The student had set up the apparatus as shown in the diagram below. Study the given diagram and answer the following questions:
Why could the student not collect ammonia gas at the end of the experiment?
Topic: Ammonia: preparation, properties and reactions
Previous-year question practice database
Answer
Exam answer
The setup attempts to collect ammonia over water, but NH₃ is highly soluble in water; it should be collected by downward displacement of air.
More from Study of Compounds – Ammonia
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