Chapter(4)/3

16. What will be the quantity of electricity required for the deposition of 21.6g of silver on the cathode? (Ag=108, 1F=96500C)

(A) 19300 C

(B) 1930 C

(D) 38600 C

17. Calculate the volume of hydrogen which would be liberated at STP during the electrolysis by 9650C. (1F=96500C)

(A) 2.24 dm³

(B) 22.4 dm³

(C) 1.12 dm³

(D) 11.2 dm³

18.What mass of copper will be deposited during electrolysis by a charge of 3 Faraday? (Cu=63)

(A) 42 g

(B) 189 g

(C) 95.4 g

(D) 94.5 g

19. What mass of copper will be deposited during electrolysis by 3600C? (Cu=63, 1F=96500C)

(A) 2.35 g

(B) 1.18 g

(C) 1.81 g

(D) 11.8 g

20.What mass of aluminium will be deposited during electrolysis by 28950C? (Al=27, 1F=96500C)

(A) 4.05 g

(B) 4.5 g

(C) 5.04 g

(D) 5.4 g

Code No.

Section

Rose

Daisy