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Byju's Answer
Standard VII
Physics
Hot and cold
Explain how a...
Question
Explain how and why and which gases are collected by the upward and downward displacement of air respectively.
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Q.
Hydrogen is collected by downward displacement of water and not of air, even though it is lighter than air. Explain why?
Q.
Ammonia gas is collected by ______.
(an upward displacement of air, a downward displacement of water, a downward displacement of air)
Q.
Explain why dry nitrogen gas cannot be collected by the displacement of air? How can it be collected?
Q.
Why Hydrogen although lighter than air, is not collected by the
downwards displacement of air?
Q.
Ammonia gas is collected in an inverted gas jar by the
__
(upward/downward) displacement of air.
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