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One litre of an unknown gas weighs 1.25 ...

One litre of an unknown gas weighs 1.25 g at NTP. The possible formula of the gas is :

A

`N_2`

B

CO

C

`SO_2`

D

`O_2`

Text Solution

Verified by Experts

The correct Answer is:
B
1L of gas at N.T.P. weights = 1.25 g
22.4 L of gas st N.T.P. weight
` = 1.25 xx 22.4 = 28`
` therefore ` molecules mass = 28
molecular formula = CO
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