Kategorier: Alla - chemistry

av Rima Sabbah för 18 dagar sedan

66

organic chemistry test

The text outlines a series of tests used to identify organic compounds and their functional groups. These tests include the addition of sodium carbonate, which can produce effervescence indicating the presence of carboxylic acids.

organic chemistry test

organic chemistry test

add Na2CO3(s)

No change
(carbonyl): ald\Ket\alcohol

add 2,4-DNPH

Orange ppt

Carbonyl (Ald\Ket) or mixture

fehling (Cu+2/SO4-2)

No change/blue color remain

Brick red ppt

Aldehyde

tollen(Ammonical silver nitrate)

silver mirror

aldehyde

No silver mirror

Ketone

No carbonyl

add H+/MnO4- in water bath

no change

3

decolorized(change purple to colorless)

1/2

it could be HCOOH methanoic acid cuz its exception cuz give us effervescence and give decolrozing with Mn

effervescence
RCOOH