Identify gases W, X and Y
A)
W X Y Nitrogen Rare gases Oxygen
B)
W X Y Carbon Oxygen Rare gases
C)
W X Y Nitrogen Oxygen Rare gases
D)
W X Y Rare gases Hydrogen Oxygen
Correct Answer: C
Solution :
In air, the composition of nitrogen is about 78%, while 21% by composition is oxygen, 0.9% constitutes rare gases and 0.03% is \[C{{O}_{2}}.\]
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