Consider the reaction below.

2 upper I superscript minus (a q) plus upper C l subscript 2 (g) right arrow 2 upper C l minus (a q) plus upper I subscript 2 (a q).

Which half reaction correctly describes the reduction that is taking place?

The reduction half cell reaction is Cl₂(g) +  2e⁻ → 2Cl⁻(aq)

Explanation:

2I⁻(aq) + Cl₂(g) → 2Cl⁻(aq) + I₂(aq)

This is the given balanced red-ox reaction.

Here, we have to find the reduction half reaction, and here the oxidation state of chlorine atom is decreased from 0 to -1, whereas in the oxidation half reaction , the oxidation state of Iodine atom is increased from -1 to 0.

So the reduction half reaction is,

Cl₂(g) +  2e⁻ → 2Cl⁻(aq)

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.