Aldehyde and Ketone

what is the diplayed formula for aldehyde

Suffix “ al “

what is the diplayed formula for ketone ?

suffix “ one “

what are the 2 solution / reagents that are use to test for aldehyde ?

Tollen’s reagent and Fehling’s solution

Oxidation and Reduction

Tollen’s reagent - observation

Tollen’s reagent : Ag ( NH3 ) 2+

OB : silver mirror

reduced to from Ag ( +1 ) to Ag ( 0 )

Fehling’s Solution - observation

Fehling;s Solution : Cu 2+

OB : Brick red precipitate

Reduced from Cu (2+ ) to Cu ( + 1 )

Name all the ketone

Propanone / Butanone / Pentan - 3 - one / 4-methylpentan - 2 - one

Name all the aldehyde

Methanal / Ethanal / Propanal / 3 - methylbutanal

Remember the OH groups take priority than the methyl group !!!