Reduction by LiAIH4 of hydrolysed product of an ester gives
two acids
two aldehydes
one molecule of alcohol and another of carboxylic acid
two alcohols
Which one of the following esters cannot undergo Claisen self-condensation ?
CH3CH2CH2CH2COOC2H5
C6H5COOC2H5
C6H5CH2COOC2H5
C6H11CH2COOC2H5
An ester is boiled with KOH. The product is cooled and acidified with conc HCI. A white crystalline acid separates. The ester is
methyl acetate
ethyl acetate
ethyl formate
ethyl benzoate
Consider the following transformationsThe molecular formula of C is
ICH2-COCH3
CHI3
CH3I
Formic acid is obtained when
calcium acetate is heated with conc H2SO4
calcium formate is heated with calcium acetate
glycerol is heated with oxalic acid at 373 K
acetaldehyde is oxidised with K2Cr2O7 and H2SO4
The relative reactivities of acyl compounds towards nucleophilic substitution are in the order of
acyl chloride > acid anhydride > ester > amide
ester > acyl chloride > amide > acid anhydride
acid anhydride > amide > ester > acyl chloride
acyl chloride > ester > acid anhydride > amide
An ester (A) with molecular formula C9H10O2 was treated with excess of CH3MgBr and the complex so formed was treated with H2SO4 to give an olefin (B). Ozonolysis of (B) gave a ketone with molecular formula C8H8O which shows positive iodoform test. The structure of (A) is
C6H5COOC6H5
H3CCOCH2COC6H5
p-H3CO-C6H4-COCH3
Self condensation of two moles of ethyl acetate in presence of sodium ethoxide yields
ethyl butyrate
acetoacetic ester
methyl acetoacetate
ethyl propionate
Benzoic acid may be converted into ethyl benzoate by reaction with
sodium ethoxide
ethyl chloride
dry HCI, C2H5OH
ethanol
Schotten-Baumann reaction is a reaction of phenols with
benzoyl chloride and NaOH
acetyl chloride and NaOH
salicyclic acid and conc H2SO4
acetyl chloride and conc H2SO4