Question

5 amperes is passed through a solution of zinc sulphate for 40 minutes. Find the amount of zinc deposited at the cathode.

• A. 40.65 gm
• B. 4.065 gm
• C. 0.4065 gm
• D. 65.04 gm

Answer 1

Answer: (B)

4.065 gm

Answer 2

$W = zit$; $W = \frac{32.69 \times 5 \times 60 \times 40}{96500} = 4.065gm$.