Question #acf82

1 Answer
Harsh Gupta
Aug 11, 2015

yes the test holds true

Explanation:

as far as i know that in fehling solution ion is in +2 oxidation state . it gets reduced to +1 thus it oxidises the aldehyde to acid .

image of the complex

the oxygen(-1) is in resonance with double bonded oxygen.
copper valency is full but it will surely oxidise the complex as all cu+2 don't form complex . (about 0.01%)

yes the test holds true because the reaction completes to 99.99% . so no doubt of the test failing.
REMEMBER THIS TEST IS MAINLY FOR SUGARS AND ALDEHYDES

if u oxidise aromatic aldehyde then there are chances of the compound loosing its aromaticity so aromatic compounds don't generally give fehling solution test

  • i am myself a student . if anyone wants to add or correct the answer he /she are requested to do so and let me know my mistake
Related questions
Impact of this question
693 views around the world
You can reuse this answer
Creative Commons License