Faraday's First Law

Q. Two Faraday of electricity is passed through a solution of $CuS{O}_4$. The mass of copper deposited at the cathode is (at. mass of Cu = 63.5 u)

1. 63.5 g
2. 2 g
3. 127 g
4. 0 g

Q. Silver is electro deposited on a metallic vessel of surface area 800 CM square by passing a current of .2 ampere 3 hours calculate the thickness of silver deposited given that its density is 10. 47 gram per centimetre cube

Q. The amount of electricity required to deposit 0.9gof aluminum the electrode reaction is
$A{l}^{3+}+3e^{-}\to Al$
(atomic mass of Al = 27)

1. $9.65\times {10}^{3}C$
2. $4.34\times {10}^{5}C$
3. $1.93\times {10}^{4}C$
4. $9.65\times {10}^{4}C$

Q.

Which theory supported the particle nature of electrons?

Q.

Same quantity of electricity is being used to liberate iodine (at anode) and a metal x (at cathode). The mass of x deposited is 0.6 g and the iodine is completely reduced by 50 cc of 0.1M sodium thiosulphate. Find the equivalent mass of x.

1. 120

2. 80

3. 68

4. 20