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Question

In the conversion of ethanol into methanol which of the following reagents will be used?

A
K2Cr2O7/H2SO4
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B
NaOH+CaO
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C
Cl2+aq.KOH
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D
All of these
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Solution

The correct option is D All of these
CH3CH2OH[O]K2Cr2O7/H2SO4CH3CHO[O]K2Cr2O7/H2SO4CH3COOHNaOH+CaOΔCH4Cl2CH3Claq.KOHKClCH3OH.

Ethanol eventually oxidizes to ethanoic acid with the help of K2Cr2O7/H2SO4
Decarboxylation of
ethanoic acid gives methane, when chlorine is passed through methane forms methyl chloride. In presence of aq. KOH methanol is produced.
Hence, all the reagents are required to convert ethanol to methanol.
Option D is correct.

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