Which of the following pairs can be distinguished by iodoform test?

C H_{3} C H O

and

C H_{3} C O C H_{3}

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C H_{3} C H O

and

C H_{3} C H_{2} O H

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C H_{3} O H

and

C H_{3} C H_{2} O H

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H C H O

and

C H_{3} C H O

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None of the above

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Solution

The correct options are
D $C H_{3} O H$ and $C H_{3} C H_{2} O H$
E $H C H O$ and $C H_{3} C H O$
The iodoform test or iodoform reaction is a qualitative chemical test for the detection of methyl ketones/alcohols, carrying an alpha-methyl group. The reagents are iodine and sodium hydroxide.
Only methyl ketones or alcohols with the feature $C H_{3} C H (O H) - R$ may undergo this reaction.

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Similar questions

X,Y and Z are three organic compounds. All the three undergo iodoform test .Only Y and Z can react with 2,4 -DNP. Only Z can reduce tollen's reagent. Here X,Y and Z respectively

C H_{3} C H O

and

C H_{3} C O C H_{3}

can not be distinguished by :-

Q. Iodoform test can be answered by
A)

C H_{3} C H O

C H_{3} C O C H_{3}

C_{2} H_{5} O H

(C H_{3})_{2} C H O H

C H_{3} C H_{2} O H

can be converted into

C H_{3} C H O

by:

$C H_{3} C H O$ and $C_{6} H_{5} C H_{2} C H O$ can be distinguished by:

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