In a galvanic cell, the salt bridge — Electrochemistry Chemistry Question

💡 Solution & Explanation

The salt bridge is packed with an inert electrolyte that facilitates electrical continuity while strictly avoiding participation in the primary redox reactions. It does not completely stop the diffusion of ions (it provides its own ions to prevent polarization), and its primary physical role is to act as a barrier that prevents the macroscopic mixing of the two electrolytic solutions, rather than ensuring it. Therefore, correct answer is A.