Post-UTME Chemistry 2006 Objective — Question 1
Question 1 of 19 from the Post-UTME Screening (Post-UTME) Chemistry 2006 Objective paper, with the correct answer and a full explanation.
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Which of the following gases can be collected by the upward displacement of air?
- A. NO
- B. H2
- C. NH3Correct
- D. Cl2
Explanation
Ammonia is significantly less dense than air, so it is commonly collected by upward displacement of air.
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