Chemistry: Amines (Solved Examples Part 1)

Solution:

Correct Answer : C

Correct Answer : D

3. Which of the following amines will give the carbylamine test?

A . a

B . b

C . c

D . d

Solution:

Aliphatic and aromatic primary amines give carbylamine test. Secondary and tertiary amines do not show this reaction.

Correct Answer : A

Correct Answer : D

5. In which of the following compound more basic compound is:

A . A

B . B

C . C

D . D

Solution:

Three degree amines are most basic

Correct Answer : A

6. The compound obtained by heating a mixture of ethylamine and chloroform with ethanolic potassium hydroxide (KOH)) is

A . an amide

B . an amide and nitro compound

C . an ethyl isocyanide

D . an alkyl halide.

Solution:

Correct Answer : C

7. In the above chemical reaction, intermediate "X" and reagent/condition "A" are :

A . 1

B . 2

C . 3

D . 4

Solution:

Correct Answer : C

8. Match List-I with List-II

A. (a)  (iii), (b)  (i), (c)  (iv), (d)  (ii)
B. (a)  (ii), (b)  (i), (c)  (iv), (d)  (iii)
C. (a)  (ii), (b)  (iv), (c)  (i), (d)  (iii)
D. (a)  (iii), (b)  (iv), (c)  (i), (d)  (ii)

Solution:

(a)  (ii) Sand Meyer reaction
(b)  (iv) Gatterman reaction
(c)  (i) Wurtz reaction
(d)  (iii) Fittig reaction
(a)  (ii),
(b)  (iv),
(c)  (i),

Correct Answer : C

9. Nitration of aniline in strong acidic medium also gives (m) -nitroaniline because

A . inspite of substituents nitro group always goes to only (m) -position

B . in electrophilic substitution reactions amino group is metadirective

C . in absence of substituents nitro group always goes to (m) -position

D . in acidic (strong) medium aniline is present as anilinium ion.

Correct Answer : D