Aldehydes,Ketones and carboxylic acids

Which of the following is mandatory for aldol condensation reaction

• presence of alpha hydrogen

• absence of alpha hydrogen

• presence of beta hydrogen

• absence of beta hydrogen

• None of the above

The compound among the following NOT oxidised by Fehling solution is ...

• acetaldehyde

• benzaldehyde

• formic acid

• α- hydroxy ketone

The number carboxylic acid group present in the product formed ,when cyclohexene is oxidised with KMnO4 and dil.H2SO4

• 1

• 2

• 3

• 5

Benzaldehyde on nitration gives

• o-nitrobenzaldehyde

• p-nitrobenzaldehyde

• m-nitrobenzaldehyde

• ortho and para dinitrobenzaldehyde

The number of carbon atoms present in glutaric acid is

• 3

• 4

• 5

• 6

The compound with highest boiling point in the following is...........

• butan-2-one

• butanoic acid

• butan-2-ol

• butanal

The compound with the highest acidity in the following is

• 4-methylbenzoic acid

• benzoic acid

• 2-nitrobenzoic acid

• 4-nitrobenzoic acid

The reagent that does NOT oxidize aldehyde is

• CrO3

• acidic K2Cr2O7

• Ag2O

• alkaline KMnO4

The Pistachio flavor of ketone present in

• acetone

• acetophenone

• benzophenone

• ethyl, methyl ketone

The ketonic fuctional group present in 3-oxobutanal is on.... carbon atom

• 1

• 2

• 3

• 4