Percentage of O_2 present in inhaled air in m | vedclass

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Question

(A) The atmospheric air that we inhale contains approximately $21\%$ oxygen $(O_2)$,$78\%$ nitrogen $(N_2)$,and $0.04\%$ carbon dioxide $(CO_2)$.There

Vedclass · Accepted Answer

$21$

Vedclass · Answer

(A) The atmospheric air that we inhale contains approximately $21\%$ oxygen $(O_2)$,$78\%$ nitrogen $(N_2)$,and $0.04\%$ carbon dioxide $(CO_2)$.Therefore,the correct percentage of $O_2$ in inhaled air is $21\%$.

Percentage of $O_2$ present in inhaled air in man is about (in $\%$)

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