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Grade 10Organic Chemistry

Reaction between ethyl alcohol, bleaching powder and water?

Profile image of Shubham Singh
7 Years agoGrade 10
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1 Answer

Profile image of Arun
7 Years ago
Ethanol (ethyl alcohol) or propanone (acetone) when treated with bleaching powder gives chloroform. This reaction is known as haloform reaction.
  • From ethanol

The reaction occurs as the bleaching powder reacts with water giving chlorine and calcium hydroxide as:

 

The reaction proceeds in three steps:

First step is the oxidation of ethyl alcohol to give acetaldehyde.

 

Second is chlorination of acetaldehyde to form chloral (trichloroethanal)