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Question
The compound that will not give Iodoform on treatment with alkali and iodine is :
The compound that will not give Iodoform on treatment with alkali and iodine is :
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Solution
The correct option is C diethyl ketone
Iodoform test is given by compounds having −COCH3 group.
In acetone −COCH3 group is present. Further ethanol and isopropyl alcohol get oxidised to acetaldehyde and acetone respectively (both having −CH(OH)CH3 group ) in the presence of I2 and they in turn give the test, Thus only diethyl ketone does not give this test. Hence option (c) is correct.
Iodoform test is given by compounds having −COCH3 group.
In acetone −COCH3 group is present. Further ethanol and isopropyl alcohol get oxidised to acetaldehyde and acetone respectively (both having −CH(OH)CH3 group ) in the presence of I2 and they in turn give the test, Thus only diethyl ketone does not give this test. Hence option (c) is correct.
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