The above setup can be used to prepare or collect $X$ . What could be $X$ ?

N H_{3}

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N O

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H_{2}

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S O_{3}

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C O_{2}

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Solution

The correct option is E $C O_{2}$
The above setup can be used to prepare or collect $C O_{2}$ gas.
The gas to be collected should be heavier than air so that the gas can displace air.
$C O_{2}$ has higher density than air.
$C O_{2}$ is almost 1.5 times heavier than air.

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