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  4. Which reagent is used for distinguishing in methanol and ethanol?

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Q. Which reagent is used for distinguishing in methanol and ethanol?

Rajasthan PETRajasthan PET 2004

Solution:

Ethanol forms iodoform with $ {{I}_{2}}+NaOH $ but methanol does not form iodoform. $ {{C}_{2}}{{H}_{5}}OH+{{I}_{2}}+NaOH\xrightarrow[{}]{{}} $ Iodoform $ C{{H}_{3}}OH+{{I}_{2}}+NaOH\xrightarrow[{}]{{}} $ No reaction