A) Benzoic acid
B) Ethanol
C) Benzyl chloride
D) M' ethanol
Correct Answer: B
Solution :
Among \[{{1}^{o}}\] alcohol only ethanol is able to give yellow colour iodoform when treated with \[{{I}_{2}}\] and \[NaOH\]. \[\underset{ethyl\,alcohol}{\mathop{C{{H}_{3}}C{{H}_{2}}OH}}\,+\underset{iodine}{\mathop{4{{I}_{2}}}}\,+6NaOH\xrightarrow{\Delta }\] \[\underset{iodoform}{\mathop{CH{{I}_{3}}}}\,+5Nal+HCOONa+5{{H}_{2}}O\] This test is called iodoform test.
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