Chemistry : Aldehydes, Ketones and Carboxylic Acids

The Kolbe's electrolysis proceeds via

• nucleophilic substitution mechanism

• electrophilic addition mechanism

• free radical mechanism

• electrophilic substitution reaction

Benedict's solution is not reduced by :

• formaldehyde

• acetaldehyde

• glucose

• acetic anhydride

The reagent used in Gatterman Koch aldehyde synthesis is :-

• Pb/ BaSO₄

• alkaline KMnO₄

• acidic KMnO₄

• CO + HCl

Iodoform can be obtained on warming NaOH and iodine with

• CH₃-CH₂-CH(OH)CH₃

• (CH₃)₂CH-CO-C₂H₅

• CH₃-CO-OCH₃

• (CH₃)₃CCH₂OH

Aldol condensation will not occur in :

• HCHO

• CH₃CH₂CHO

• CH₃COCH₃

• CH₃CHO

Ethers are isomeric with

• aldehyde

• ketones

• both aldehyde and ketones

• alcohols

In Williamson's synthesis

• an alkyl halide is treated with sodium alkoxide

• an alkyl halide is treated with sodium

• an alcohol is heated with cone. H₂SO₄  at 130$°$C

• None of the above

The Cannizaro reaction is not given by

• trimethyl acetaldehyde

• acetaldehyde

• benzaldehyde

• formaldehyde

Self condensation of acetaldehyde, in the presence of dilute alkalies gives

• an acetal

• an aldol

• mesitylene

• propionaldehyde

Stephen's reduction is used to prepare aldehyde from

• alcohol

• alkyl cyanides

• alkanones

• acid chlorides