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When ethanol or acetone is distilled with a paste of bleaching powder as part of a laboratory or commercial process, which reaction occurs?

1. CaOCl2 + H2O produces Ca(OH)2 and Cl2 gas.
2. CaOCl2 reacts with water to form Ca(OH)2 and Cl2, acting as a chlorinating agent.
3. CH3COCH3 reacts with 3Cl2 to form CCl3COCH3 and 3HCl.
4. CH3COCH3 undergoes reaction with 3Cl2 to yield CCl3COCH3 and 3HCl through hydrolysis.

Correct answer: CH3COCH3 reacts with 3Cl2 to form CCl3COCH3 and 3HCl.

Solution

The reaction involves the chlorination of acetone (CH3COCH3) with chlorine gas, forming trichloroacetone (CCl3COCH3) and HCl as by-products. This matches option C.

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