When air is successively passed through sodium hydroxide solution, alkaline pyrogallol and then concentrated tetraoxosulphate (VI) acid, its remaining components are?

by | May 11 | Chemistry WAEC | 0 comments

A. oxygen and water vapour
B. oxygen and nitrogen
C. carbon (IV) acid and noble gases
D. nitrogen and noble gases

Correct Answer: Option D

D. nitrogen and noble gases

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