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The density of a gas 'S' at 2 atm and 27...

The density of a gas 'S' at 2 atm and `27^@C` is 1.3 gm / lit. Then the gas 'S' may be 

A

`CH_4`

B

`O_2`

C

`SO_2`

D

`CO_2`

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The correct Answer is:
A
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