Question

In a galvanic cell, the salt-bridge

(a) does not participate chemically in the cell reaction

(b) slops the diffusion of ions from one electrode to another

(c) is necessary for the occurrence of the cell reaction

(d) ensures mixing of the two electrolytic solutions

Answer 1

Functions of salt-bridge are

(i) It connects the two half-cells and completes the cell circuit.

(ii) It keeps the solutions of two half-cells and complete the cell circuit but does not participate chemically in the cell reaction.

(iii) It maintains the diffusion of ions from one electrode to another electrode.

Hence, options (a) and (b) are correct and option (d) is incorrect.

Salt-bridge is not necessary for the occurrence of the cell reaction. Sometimes, both the electrodes dip in the same electrolyte solution. So, option (c) is not correct.

Answer 2

Answer:

sorry I can not understand