The ratio of masses of oxygen and nitrogen in a particular gaseous ...

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The ratio of masses of oxygen and nitrogen in a particular gaseous mixture is \( 1: 4 \). The ratio of
P number of molecules is :
(1) \( 1: 8 \)
(2) \( 3: 16 \)
(3) \( 1: 4 \)
(4) \( 7: 32 \)
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