108 g fairly concentrated solution of `AgNO_(3)` is electrolysed by using 0.1 F charge the mass of resulting solution is

Options

A. 94 g
B. 11.6 g
C. 96.4 g
D. none

Answer

C

Explanation

At anode
`2HgO(l)to4H^(+)(aq)+O_(2)(g)+4e^(-)`
At cathode
`Ag^(+)(aq)+e^(-)toAg(s)`
Ag deposited out `=0.1mol e=10.8gram`
`O_(2)` expelled out `=(0.1)/(4)=0.8gram`
total wt. loss of the solution =11.6 gram
wt. of remaining solution `=108-11.6=96.4gram`