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The vapour density of a aseous mixture o...

The vapour density of a aseous mixture of non-reactive gases 'A' and 'B' is 40. if the molar mass of gas 'A' is 20 g/mol and the mixture contains the gases in 2:3 volume ratio, then the molar mass of gas 'B' is

A

`(160)/(3)`

B

40

C

120

D

60

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The correct Answer is:
c
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