Question

Time required to deposit one millimole of aluminium metal by the passage of 9.65 A through molten electrolyte containing aluminium ion is

(a) 30 s

(b) 10 s

(c) 30,000 s

(d) 10,000 s

Answer 1

Answer is : (a) 30 s

1 mole of Al requires

= 3 x 96500 C

10⁻³ moles of Al requires