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In what respect will two dry samples of nitrogen gas differ from each other if...

Chemistry
JAMB 1985
In what respect will two dry samples of nitrogen gas differ from each other if sample 1 is prepared by completely removing CO2 and O2 from air, and sample 2 is prepared by passing purified nitrogen(i)oxide over heated copper? sample 1 is
  • A. purer than sample 2
  • B. slightly denser than sample 2
  • C. in all respects the same as sample 2
  • D. colourless but sample 2 has a light brown colour
  • E. slightly less reactive than sample 2
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Correct Answer: Option B
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