Question on: JAMB Chemistry - 2012

I. It has a varied composition from one place to another. ll. it constituents can be separated by physical means

lll. It contains unreactive noble gases

which of the above shows that air is a mixture?

A
I and ll only
B
ll and lll only
C
l and lll only
D
l,lll and lll
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Correct Option: A

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