Question

explain oxidizing power of group 17 elements​

Answer 1

Answer:

The iodide ions lose electrons to form iodine molecules; they are oxidized. The chlorine molecules gain electrons to form chloride ions. They are reduced.

Answer 2

Answer:

Consider a reaction between one halogen—chlorine, for example—and the ions of another—iodide, in this case. The iodide ions are dissolved from a salt such as sodium iodide or potassium iodide. The sodium or potassium ions are spectator ions and therefore irrelevant to the reaction, which proceeds as follows:

Cl2+2I−→2Cl−+I2(1)

The iodide ions lose electrons to form iodine molecules; they are oxidized.

The chlorine molecules gain electrons to form chloride ions. They are reduced.

This is a redox reaction in which chlorine is acting as an oxidizing agent. The driving force force this reaction is straightforward to identify from the table of Standard Reduction Potentials