Which are heavier than dry air?

Moist air

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S O_{2}

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C l_{2}

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O_{2}

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Solution

The correct options are
B $S O_{2}$
C $O_{2}$
D $C l_{2}$
As we know,
average molar mass of dry air is 28.97 $g / m o l$ .
so gases
$C l_{2}$ $71$
$O_{2}$ $32$
$S O_{2}$ $64$
are heavier than dry air and
moist air containing $H_{2} O$ , $18$ is lighter than dry air.

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Dry O₂ is:

N_{2} O

O_{2}

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