Chemistry, asked by mrudulnaik, 1 year ago

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​

Answers

Answered by erfankhan
8

HERE'S THE ANSWER,

OPTION (A) Ethanal.

HOPE IT HELPS, PLEASE MARK AS BRILLIANIST


mrudulnaik: how did you arrive at the answer,pls explain
erfankhan: when ethanol is passed over heated copper dehydrogenetion takes place and ethanol is formed.
mrudulnaik: okay thanks..can you post the reaction too?
erfankhan: C2H5OH (ethanol) ---------> CH3CHO (ethanal)
mrudulnaik: oh.. I get it now. Thanku!
erfankhan: ur wc
Answered by gadakhsanket
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.


Hope this helps you...
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