P-cresol reacts with chloroform in alkaline medium to give the compound A which adds hydrogen cyanide to form the compound B. The latter on acidic hydrolysis gives chiral carboxylic acid. The structure of the carboxylic acid is
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
B.
acetylene
Lewisite is obtained when acetylene is treated with arseruc trichloride in the presence of anhydrous aluminium chloride.
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