Percentage of \[Ar\] in air is about [CPMT 1989]

1.	Percentage of \[Ar\] in air is about [CPMT 1989]
A.	0.01
B.	0.02
C.	0.03
D.	0.04
Answer» B. 0.02

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Percentage of \[Ar\] in air is about [CPMT 1989]

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