Which of the following gas is heavier than air?

N_{2}

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O_{2}

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C O_{2}

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H_{2}

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Solution

The correct options are
B $O_{2}$
C $C O_{2}$
The molecular weights of the $N_{2}, O_{2}, C O_{2}, H_{2}$ are 28,32,44,2 respectively
So $C O_{2}$ is heavier than air ( $O_{2}$ )
Hence option $C$ is correct.

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Which of the following gas is heavier than air?

The correct options are B O2 C CO2The molecular weights of the N2,O2,CO2,H2 are 28,32,44,2 respectivelySo CO2 is heavier than air (O2)Hence option C is correct.

The correct options are
B $O_{2}$
C $C O_{2}$
The molecular weights of the $N_{2}, O_{2}, C O_{2}, H_{2}$ are 28,32,44,2 respectively
So $C O_{2}$ is heavier than air ( $O_{2}$ )
Hence option $C$ is correct.