831.

When acetone is treated with dilute alkali, the product obtained is

• mesitylene

• mesityl oxide

• paraldehyde

• phorone

Hydride ion transfer takes place in

• Frankland method

• Wurtz reaction

• Cannizaro's reaction

• Wolff- Kishner reduction

An organic compound C₃H₆O neither gives precipitate with semicarbazide nor reacts with sodium. It could be

• CH₃CH₂CHO

• CH₃COCH₃

• CH₂=CHCH₂OH

• CH₂=CHOCH₃

Lewisite, a chemical used inchemical warfare, is obtained from

• phosphene

• acetylene

• ethylene

• zinc phosphate

Ketone upon treatment with Grignard reagents gives

• primary alcohol

• secondary alcohol

• tertiary alcohol

• aldehyde

The reaction of sodium ethoxide with iodoethane to form diethyl etheris termed as

• electrophilic substitution

• nucleophilic substitution

• electrophilic addition

• radical substitution

Which of the following compounds would be the main product of an aldol condensation of acetaldehyde and acetone ?

• CH₃CH=CHCHO

• CH₃CH=CHCOCH₃

• (CH₃)₂C= CHCHO

• (CH₃)₂C= CHCOCH₃

When benzaldehyde is treated with acetic anhydride, in the presence of corresponding salt of the acid, the product obtained is

• cinnamic acid

• cinnamaldehyde

• crotonic acid

• benzillic acid

Cannizaro as well as aldol condensation reaction is given by

• benzaldehyde

• 2- methylpropanal

• 2,2-dimethylpropanal

• acetaldehyde

Which one of the following compounds will not undergo aldol condensation ?

• Acetaldehyde

• Formaldehyde

• Propionaldehyde

• Acetone