Electrochemistry Ques 13
13. The weight of silver $($ at wt. $=108)$ displaced by a quantity of electricity which displaces $5600 mL$ of $O_2$ at STP will be :-
[2014]
(a) $5.4 g$
(b) $10.8 g$
(c) $54.9 g$
(d) $108.0 g$
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Answer:
Correct Answer: 13.(d)
Solution:
(d) $w _{O_2}=n _{O_2} \times 32$
$w _{O_2}=\frac{5600}{22400} \times 32=8 g=1$ equivalent of $O_2$
$=1$ equivalent of $Ag=108$
BETA
