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Give a chemical test to distinguish betw...

Give a chemical test to distinguish between methanol and ethanol.

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As ethanol contains the hydroxy ethyl group, it will conform to iodoform test, that is when treated with `I_(2)` in NaOH a yellow ppt of iodoform is obtained along with the sodium salt of methanoic acid. As for methanol, there is neither a methyl ketone nor a hydroxy ethyl group so it does not give iodoform test.
`C_(2)H_(5)OH+4I_(2)+6NaOH rarr underset("iodoform ")(CHI_(3) darr)+5Nal +HCO ONa+5H_(2)O`
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