Question

What happen when chlorine react with potassium iodide

Answer 1

Answer:

Chlorine is more stronger oxidizing agent as compared to iodide. Hence, it oxidizes iodide ions to iodine. During the reaction, colorless potassium iodide solution turns to black due to the presence of black iodine solid. Chemical reaction that takes place is as shown below:

2KI(aq) + Cl2(g)———-]I2(s)(black solid) + 2KCl(aq)

Answer 2

Answer:

In this reaction when potassium iodide solution is put into chlorine gas a rapid reaction occurs and black iodine solid is formed along with potassium chloride solution. The chlorine has kicked the iodide out. This happens due to activity series  and so chlorine reacts and displaces iodine and forms potassium chloride

Explanation:

2kI +CI2 ---> 2KCl +I2