A) Z, X, Y
B) X, Y, Z
C) X, Z, Y
D) Z, Y, X
Correct Answer: A
Solution :
Oxygen is necessary for burning. Air also supports burning as it contains oxygen. It is a mixture of gases i.e. nitrogen, oxygen, noble gases, carbon dioxide and water vapour. Hence amount of oxygen present in jar Z is higher as compared to that present in jar X. Jar Z will therefore support burning of candle for a longer time than jar X. Carbon dioxide does not support burning and extinguishes fire.You need to login to perform this action.
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