Question

The number of electrons delivered at the cathode during electrolysis by a current of 1A in 60 seconds is ____________.
(charge of electron = 1.6 × 10⁻¹⁹ C)

Options

• 6.22 × 10²³

• 6.022 × 10²⁰

• 3.75 × 10²⁰

• 7.48 × 10²³

Answer 1

The number of electrons delivered at the cathode during electrolysis by a current of 1A in 60 seconds is 3.75 × 10²⁰.

Explanation:

Q = It

= 1A × 60S

96500 C charge ≡ 6.022 × 10²³ electrons

60 C charge ≡ `(6.022 xx 10^23)/96500 xx 60`

= 3.744 × 10²⁰ electrons