A diagram of a simple cell is shown - HSC - SSCE Chemistry - Question 7 - 2015 - Paper 1

When the cell is in operation, a redox reaction takes place. In the case of a galvanic cell involving silver and copper, the copper electrode (anode) loses electrons, leading to the increase in copper ions in the solution. This means that the correct answer is (B) The copper electrode loses electrons. This loss of electrons at the anode allows the silver ions in solution (Ag+) to gain electrons and precipitate as solid silver at the cathode (silver electrode). The movement of electrons through the external circuit is accompanied by the movement of ions through the electrolyte solution, which is facilitated by the salt bridge.