Experiment 3.3: To Study the Displacement Reaction Between Halogens and Halide Ions

Aim :
To study the displacement reactions between halogens and halide ions

Procedure :
1.    A test tube is filled with 2 cm3 of potassium bromide, KBr solution.
2.    2 cm3 of chlorine water is added to the potassium bromide solution. The mixture is shaken gently.
3.    2 cm3 of 1,1,1,-trichloromethane (CH3CCl3) is then added to the misture obtained in step 2. The mixture is then shaken vigorously.
 4.    The test tube is allowed to stand for a few minutes and the colour of the 1,1,1,-trichloromethane layer is recorded.

5.    Steps 1 to 4 are repeated using the following mixtures.

a)    Chlorine water and potassium iodide, KI solution
b)    Liquid bromine and potassium chloride, KCl solution
c)    Liquid bromine and potassium iodide solution
d)    Iodine solution and potassium bromide solution
e)    Iodine solution and potassium chloride solution

A special thanks to ace_0106 for typing the procedures.

Br2 + KCl  no displacement occur.


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