The number of moles of electrons passed when current of 2 A is passed through an solution of electrolyte for 20 minutes is ___________.

Options

A. `4.1 xx 10^(-4)" mol e"^(-)`
B. `1.24 xx 10^(-2)" mol e"^(-)`
C. `2.487 xx 10^(-2)" mol e"^(-)`
D. `2.478 xx 10^(-1)mol e^(-)`

Answer

C

Explanation

No. of moles of `e^- = Q/F`
`:." "n_(e^(-))= (2xx20xx60)/(96500)=2.487 xx10^(2) "mol e"^-`