organic chemistry test
add Na2CO3(s)
effervescence
RCOOH
No change
(carbonyl): ald\Ket\alcohol
add 2,4-DNPH
No change
No carbonyl
add H+/MnO4- in water bath
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
no change
3
Orange ppt
Carbonyl (Ald\Ket) or mixture
tollen(Ammonical silver nitrate)
No silver mirror
Ketone
silver mirror
aldehyde
fehling (Cu+2/SO4-2)
Brick red ppt
Aldehyde
No change/blue color remain
Ketone