A positive carbylamine test is given by
I. N, N-dimethylaniline
II. 2, 4-dimethylamine
III. N-methyl-o-methylaniline
IV. p-methylbenzyl amine
(II) and (IV)
(I) and (IV)
(II) and (III)
(I) and (II)
A.
(II) and (IV)
Carbylamine or isocyanide test is given by only primary amines, whether they are aliphatic or aromatic.
I, II and III are aromatic but compound IV is an aliphatic amine. Further, compound I is tertiary amine, II and IV are primary amines, thus give positive carbylamine test, whereas compound III is a secondary amine.
Identify the final product B of the reaction
C6H5COOH + NaHO3 → gas (A) (B)
Here, = C14
H3COOH
C6H5OOH
CH3OOH
HOOCH3
CH3CHO + HCHO
The structure of the compound B is
CH2=CH-CH(OH)-COOH
CH2=CH-CH(CN)-OH
CH3-CH2-CN(CN)OH
CH3--COOH
Phenol + CCl4 + KOH → X;
Which of the following statement is true for X?
It gives effervescence with NaHCO3
Gives silver mirror with Tollen's reagent
Does not give the red colour with FeCl3
All of the above