The number of electrons delivered at the
cathode during electrolysis by a current of
1 ampere in 60 seconds is (charge on electron
= 1.60 × ``10^{-19}`` C)
(1) ``3.75 × 10^{20} ``
(2) ``7.48 × 10^{23}``
(3) ``6 × 10^{23}``
(4) ``6 × 10^{20}``