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Alcohols, Phenols and Ethers — Chemistry STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryAlcohols, Phenols and Ethers2 Marks
Question
Explain the action of sodium on ethanol.
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Answer

When cthanol is treated with sodium metal, sodium ethoxide is formed and hydrogen gas is liberated.
$\underset{\text { Ethanol }}{2 CH _3- CH _2- OH +2 Na \longrightarrow} \underset{\text { Sodium ethoxide }}{2 CH _3- CH _2- ONa + H _2 \uparrow}$
Liberation of $H _2$ gas is used to detect the presence of alcoholic $- OH$ group of a molecule.

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