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प्रश्न
Ammonia can be collected by ______.
पर्याय
upward displacement of water
upward displacement of air
downward displacement of water
downward displacement of air
MCQ
रिकाम्या जागा भरा
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उत्तर
Ammonia can be collected by downward displacement of air.
Explanation:
Ammonia is lighter than air, so it rises to the top of an inverted jar and pushes the heavier air downwards. It cannot be collected over water because it is highly soluble in it.
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