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Q.

C2H5OH→300°CCuCH3CHO.
The above process is

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a

Reduction

b

Dehydrogenation

c

Both 2 and 3

d

Oxidation

answer is D.

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Detailed Solution

  • Ethanol upon oxidation with Cu followed by heating at 3000C  gives aldehyde with molecular C2​H4​O.
  • Copper at 300°C is the reagent for dehydrogenation. When vapors of primary or secondary alcohol is are passed over Cu at 300°C, result in the formation of aldehyde (with primary alcohol) and ketone (with secondary alcohol).
  • Tertiary alcohols are oxidized to alkenes ( called dehydration )  with Cu at 300°C.
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