11th And 12th > Chemistry
AMINES MCQs
:
B
A = C6H6; B = C6H5 - NO2; C = C6H5 - NH2; D = Sulphanilic acid
:
D
Aliphatic amine diazonium salt is unstable
:
D
Aromatic amine are less basic than aliphatic
Some statements are given about acylation of amines with acid chloride
I. Tertiary amines do not react with acid chloride
II. This reaction is an example of a nuclophilic addition reaction
III. This reaction is carried out in the presence of pyridine
IV. Aliphatic and aromatic primary and secondary amines involve in this reaction
The correct statements is/ are
:
B
Statement II refers to is a nucleophilic substitution reaction
:
A
2 & 4 are 10 amine; 1 is 30 amine; 3 is 20 amine & only 10 amine gives a positive carbyl amine test
:
C
NH2 is o & p - directing group where as NH3+ is meta directing group
:
D
Gabriel pthalamide is used in the preparation of aliphatic and arylalkyl primary amines only
N- methyl benzyl amine(CH3 NH CH2C6H5) being a secondary amine cannot be prepared by this method.
:
D
Hiensberg reagent and methyl derivative of it can be used