O2 gas will be evolved as a product of electrolysis of :
(A) an aqueous solution of AgNO3 using silver electrodes.
(B) an aqueous solution of AgNO3 using platinum electrodes.
(C) a dilute solution of H2SO4 using platinum electrodes.
(D) a high concentration solution of H2SO4 using platinum electrodes.
Choose the correct answer from the options given below :
1
(B) and (C) only
2
(A) and (D) only
3
(B) and (D) only
4
(A) and (C) only