1.

When 2 gm A gas is introduced into an evacuated flask kept at 25^(@)C, the pressure is found to be 1 atm. If 3 g of another gas B is then added to same flask, the total pressure becomes 0.5 atm. The ratio of molecular weights is

Answer»

`1:1`
`1:2`
`2:3`
`1:4`

ANSWER :C


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