Give the IUPAC name for
ethyl-4-oxoheptanoate
methyl-4-oxoheptanoate
ethyl-4-oxohexanoate
methyl-4-oxohexanoate
The weakest acid amongst the following is :
ClCH2COOH
HCOOH
FCH2CH2COOH
CH2(I)COOH
D.
CH2(I)COOH
The strength of carboxylic acid depends upon the nature of the electron withdrawing halogen atom. Greater the electron withdrawing influence of the halogen atom stronger will be the acid. The electron withdrawing effect of the halogen decreases as:
F > Cl > Br > I
Hence, CH2(I) · COOH is the weakest acid among these.
Trans esterification is the process of :
conversion of an aliphatic acid to ester
conversion of an aromatic acid to ester
conversion of one ester to another ester
conversion of an ester into its components namely acid and alcohol
The correct sequence of base strengths in aqueous solution is :
(CH3)2NH > CH3NH2 > (CH3)3N
(CH3)3N > CH3NH2 >(CH3)2NH
(CH3)3N > CH3NH2 = (CH3)2NH
(CH3)2NH > (CH3)3N > CH3NH2
When aqueous solution of benzene diazoniumchloride is boiled, the product formed is:
C6H5CH2OH
C6H6 + N2
C6H5COOH
C6H5OH
Carbylamine reaction is given by aliphatic :
primary amine
secondary amine
tertiary amine
quaternary ammonium salt