TEST--54--XII [electro-]

Q.15.- Which of the following statements about a salt bridge in a voltaic cell is TRUE?

1. Free electrons flow through the salt bridge to maintain electrical neutrality in the two half-cells.
2. The salt bridge allows the ions present in the two half-cells to mix extensively.
3. The wire must be connected directly to the salt bridge in order for the salt bridge to be able to maintain electrical neutrality in the two half-cells.
4. In some cases, a salt bridge functions as the anode.
5. Ions from the electrolyte in the salt bridge flow into each half-cell to maintain electrical neutrality.