Chemistry > 2012 > 13
JAMB UTME
I. It has a varied composition from one place to another
II. Its constituents can be separated by physical means
III. It contains unreactive noble gases
Which of the above shows that air is a mixture?
II. Its constituents can be separated by physical means
III. It contains unreactive noble gases
Which of the above shows that air is a mixture?
A.
I and II only
B.
II and III only
C.
I and III only
D.
I, II and III
Answer: D
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