The Student Room Group
Reply 1
using 2 4 dinitrophenylhydrazine solution ... forms a yellow or orange precipitate with carbonyl compounds ...

i dont think with carboxylic acids though .... for tht u use sodium bicarbonate .... forms C02 gas
yea it forms a orange preciptiate only with ketones and aldehydes but not with carb acids because the coh bit causes some kind of dipole or something to the double bond

isnt a level chemistry all finished now?

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