An experiment was set up as shown - HSC - SSCE Chemistry - Question 12 - 2013 - Paper 1

To answer this question, we need to understand the concept of anodes and cathodes in electrochemical cells.

In this setup:

1. Identify the Anode: The anode is where oxidation occurs. In this case, the zinc electrode acts as the anode. Zinc ( ext{Zn}) will undergo oxidation, releasing electrons.

2. Consider the Other Options:

   • Chlorine gas (Option A) does not act as an anode in this setup. It is actually involved in reduction reactions at the cathode.
   • Platinum electrode (Option C) is often used as an inert electrode, but in this case, it does not function as the anode.
   • Salt Bridge (Option D) is not necessary for the operation as in this experimental setup, the electrolyte (ZnCl₂) allows ionic conduction between the two half-cells.

Thus, the correct option is (B) The zinc electrode is the anode.