A gaseous mixture contains oxygen and nitrogen in the ratio of 1: 4 by weight. Therefore, the ratio of their number of molecules is

A gaseous mixture contains oxygen and nitrogen in the ratio of 1: 4 by

1.	A gaseous mixture contains oxygen and nitrogen in the ratio of 1: 4 by weight. Therefore, the ratio of their number of molecules is
A.	1 : 4
B.	1 : 8
C.	7 : 32
D.	3 : 16
Answer» D. 3 : 16

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A gaseous mixture contains oxygen and nitrogen in the ratio of 1: 4 by weight. Therefore, the ratio of their number of molecules is

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