A stream of air was successively passed through three tub...
A stream of air was successively passed through three tubes X, Y and Z containing a concentrated aqueous solution of KOH, red hot copper powder and fused calcium chloride respectively. What was the composition of the gas emanating from tube Z?
CO2 ad ithe inert gases
N2, CO2 and the inert gases
N2 and the inert gases
water vapour, N2 and the inert gases
Correct answer is C
No explanation has been provided for this answer.
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