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प्रश्न
Give the necessary conditions and equations of getting ethanol from:
(a) Alkyl halide
(b) An ethene
टिप्पणी लिखिए
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उत्तर
Necessary conditions and equations of getting ethanol from the following
are:
(a) Alkyl halide: alkyl halide on hydrolysis with dilute alkali give alcohol
\[\ce{C2H5Br + KOH(aq) -> C2H5OH + KBr}\]
(b) An ethene: Ethene is first treated with concentrated sulphuric acid
at 80°C when ethyl hydrogen sulphate is formed. Ethyl hydrogen
sulphate on hydrolysis with boiling water or steam yield ethanol.
\[\ce{CH2 = CH2 + H2SO4 ->[80°C][30abm] CH3CH2HSO4}\]
\[\ce{CH3CH2HSO4 + HOH ->[boiling] CH3CH2OH + H2SO4}\]
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