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The constitue...

Question

The constituent of air with highest proportion :

C O_{2}

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N_{2}

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O_{2}

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C O

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Solution

The correct option is C $N_{2}$
Air contains $78.09 %$ nitrogen, $20.95 %$ oxygen, $0.93 %$ argon, $0.04 %$ carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around $1 %$ at sea level, and $0.4 %$ over the entire atmosphere.

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