Answer:The purpose of the salt bridge in an electrochemical cell is to maintain electrical neutrality in the half-cells via migration of ions
Explanation:
A salt bridge is a u-shaped tube or filter paper bridge type laboratory device used to connect the oxidation and reduction half-cells of a galvanic/voltaic cell. it maintains electrical neutrality in the half cells thereby preventing the cell from having imbalance of charges in the flow of electrons moving from one half cell to another.