Is Aldehyde Acidic or Basic?

The gas-phase acidity of aldehyde was found to be 1,640 kJ/mol (393 kcal/mol), making it more acidic than hydrogen (1,700 kJ/mol, 400 kcal/mol) and ammonia (1,680 kJ/mol, 402 kcal/mol), but less acidic than water (1,600 kJ/mol, 390 kcal/mol) in the gas phase.

Are aldehydes weak acids?

Aldehydes and ketones contain the carbonyl functional group. ... They are weak acids because the hydrogen of the hydroxyl group is ionizable. In an ester, the hydrogen of a carboxylic acid group is replaced by an alkyl group.

Are aldehydes neutral?

Neutral compounds include the following functional group classes: hydrocarbons (alkanes, alkenes, alkynes, aromatic compounds), alcohols, aldehydes, ketones, esters, amides, nitro compounds.