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When air is passed through alkaline pyrogallol and then lime water, the gases left are

Chemistry
NECO 2009
When air is passed through alkaline pyrogallol and then lime water, the gases left are
  • A. nitrogen and carbon (IV) oxide
  • B. nitrogen and noble gases
  • C. nitrogen and oxygen
  • D. nitrogen, carbon (VI) oxide and noble gases
  • E. the noble gases
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Correct Answer: Option B
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