1.

Explain the laboratory preparation of chloroform.

Answer»

Haloform reaction:

Chloroform is prepared in the laboratory by the reaction between ethyl alcohol with bleaching powder followed by the distillation of the final product chloroform. Bleaching powder acts as a source of chlorine and calcium hydroxide.

The reaction take place in 3 steps.

Step 1:

Oxidation-

Step 2:

Chlorination-

Step 3:

Hydrolysis



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