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Q.
When IF of electricity is passed through acidulated water, $ O_{2} $ evolved is:
Uttarkhand PMTUttarkhand PMT 2006
Solution:
Mass of $O_{2}=\frac{E}{F} \times Q=\frac{8}{F} \times F=8\, g$
Volume of $8 \,g$ of $O_{2}$ at NTP
$=\frac{22.4 \times 8}{32} d m^{3}$
$=5.6\, dm ^{3}$