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The ratio of masses of oxygen and nitrog...

The ratio of masses of oxygen and nitrogen in a particular gaseous mixture `1:4`. The ratio of number of their molecule is :

A

`1 : 4`

B

`7 : 32`

C

`1 : 8`

D

`3 : 16`

Text Solution

Verified by Experts

The correct Answer is:
B
`(n_(O_(2)))/(n_(N_(2))) = (((m_(O_(2))))/((M_(O_(2)))))/(((m_(N_(2))))/((M_(n_(2)))))`
`= ((m_(O_(2)))/(m_(N_(2)))) (28)/(32) = (1)/(4) xx (28)/(32)`
`= (7)/(32)`
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