Question

Complete the following reaction :

${\mathrm{Cl}}_2+\mathrm{KI}\stackrel{}{\to }-----+{\mathrm{I}}_2$

Answer 1

Displacement reaction:

• It is a chemical reaction in which an element replaces another element in a compound and takes its place.
• A more reactive element displaces a less reactive element from its compound.
• $\underset{\mathrm{chlorine}\mathrm{gas}}{{\mathrm{Cl}}_2\left(\mathrm{g}\right)}+\underset{\mathrm{potassium}\mathrm{iodide}}{2\mathrm{KI}\left(\mathrm{aq}\right)}\stackrel{}{\to }\underset{\mathrm{potassium}\mathrm{chloride}}{2\mathrm{KCl}\left(\mathrm{aq}\right)}+\underset{\mathrm{iodine}}{{\mathrm{I}}_2\left(\mathrm{aq}\right)}$