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The gas that can best be collected by downward displacement of air is

Chemistry
JAMB 2001

The gas that can best be collected by downward displacement of air is

  • A. Chlorine
  • B. Sulphur (IV) oxide
  • C. Ammonia
  • D. Carbon (IV) oxide
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Correct Answer: Option C
Explanation

 

The method used to collect a gas depends on whether it is denser or lighter than air. For example, ammonia gas is collected by downward displacement of air because it is lighter than air. Option C is the correct answer.

Chlorine is heavier than air.

SO\(_2\) is denser than air.

CO\(_2\) is denser than air.

 

 

There is an explanation video available below.


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Explanation Video

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Post UTME Past Questions Agent
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Post UTME Past Questions Agent
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts