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The density of a gas is 1.964 g dm^(-3)...

The density of a gas is `1.964` `g dm^(-3)` at `273 K` and `76 cm Hg`. The gas is

A

`CH_(4)`

B

`C_(2)H_(6)`

C

`CO_(2)`

D

`Xe`

Text Solution

Verified by Experts

The correct Answer is:
C
`M = d (RT)/(P)`
`= ((1.964 g dm^(-3) (0.0821 dm^(3) atm K^(-1) mol^(-1)) (273 K)))/(76//76 atm)`
`44 g mol^(-1)` Hence the gas is `CO_(2)`
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