What is the function of a salt bridge in a galvanic cell?

Video transcript

Hello, everyone in this video, we're given all these different options here that are being asked which of those options cannot be used as a salt bridge. Let's go ahead and bring out the definition of what even a salt bridge is and its purpose. So for a salt bridge, this provides a pathway for ions to the cathode and an ode to maintain electrical neutrality in the electrodes. So usually for salt bridges, their glass tubes with gel, inner electrolytes or a strip or of paper, a filter paper to be more exact solved in a solution of inert electrolyte. So taking a look at all these options that we have, we can see that C. N. D. Is incorrect or it cannot be used in a salt bridge because here we have a length of rope and a wire. So the answer choice that gives us both C and D. Options is going to be option F. So my final answer for this problem is going to be option F. Which is again, the answer choices of C and D. Being not able to be used as a salt bridge.