Question

when vapour of ethanol is passed over heated copper (II) oxide,the product formed is:
(A) Ethanal
(B) Ethanoic Acid
(C) Ethene
(D) None of these​

Answer 1

HERE'S THE ANSWER,

OPTION (A) Ethanal.

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Answer 2

Hey dear,

● Answer -
Ethanoic acid.

● Solution -
- Copper oxide reacts with primary alcohols to give aldehydes which on further oxidation gives carboxylic acids.
- When vapors of ethanol are passed over copper oxide, acetaldehyde (ethanal) is formed which on further oxidation gives ethanoic acid.
CH3-CH2-OH + CuO ---> CH3-CHO + Cu + H2O

* Ethanal and ethanoic acid both are formed here, but ethanoic acid is more final product.


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