water
impurities
inert gas
oxygen
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I think the answer should be Oxygen because in these experiments alkaline pyrogallol, anhydrous calcium chlorine remove Co2 leaving behind Nitogen and inert gas

The answer is C because alkaline pyrogallol absorbs oxygen and anhydrous cacl2 dries or absorbs water vapour leaving behind nitrogen, CO2 and the inert gases

Greetings, The Myschool Team.
The correct answer is C(inert gas) and not D (oxygen). The function of the alkaline pyrogallol is to remove oxygen. The dried gas produced is then called X, which is air with oxygen and water vapour removed. The components left are nitrogen, carbon(IV) oxide and noble or rare gases, which is appropriately described by C (inert gas). Thus, the correct answer is C(inert gas) and not D (oxygen). Please the necessary corrections should be made. Thank you.



