Q.1.
than one correct answers Q66) C3H9N represente(s)
-
16%
a) p-amine
-
22%
b) s-amine
-
19%
c) t-amine
-
44%
d) all of these
Q.2.
Amines are more basic than
-
23%
a) alcohols
-
6%
b) ethers
-
10%
c) esters
-
61%
d) all of the above
Q.3.
Which of the following amine will give the carbylamine test?[ NEET 2020]
-
17%
a)
-
21%
b)
-
4%
c)
-
58%
d)
Q.4.
Among the following, the reaction that proceeds through an electrophilic substitution, is: [ NEET 2019]
-
36%
a)
-
14%
b)
-
45%
c)
-
5%
d)
Q.5.
he major product of the following reaction is: [NEET 2019]
-
29%
a)
-
41%
b)
-
12%
c)
-
18%
d)
Q.6.
The correct order of the basic strength of methyl substituted amines in aqueous solution is : ..... [NEET 2019]
-
37%
a) (CH3)2NH > CH3NH2> (CH3)3N
-
16%
b) (CH3)3N > CH3NH2> (CH3)2NH
-
32%
c) (CH3)3N > (CH3)2NH > CH3NH2
-
16%
d) CH3NH2 > (CH3)2NH > (CH3)3N
Q.7.
Which of the following compounds can form a zwitterion ? [ NEET 2018]
-
24%
a) Benzoic acid
-
18%
b) Acetanilide
-
29%
c) Aniline
-
29%
d) Glycine
Q.8.
Acetaldoxime reacts with P2O5 to produce [ AFMC 1997]
-
24%
a) ethyl cyanide
-
24%
b) propyl cyanide
-
29%
c) methyl cyanide
-
24%
d) none of these
Q.9.
The basicity of aniline is less than that of cyclohexamine. This is due to [ AFMC 2010]
-
65%
a) + R effect of -NH2
-
18%
b) - I effect of -NH2
-
12%
c) - R effect of -NH2
-
6%
d) hyperconjugation of effect
Q.10.
In the diazotization of arylamines with sodium nitrate and hydrochloric acid, an excess of hydrochloric acid is used primarily to.. [ AFMC 2011]
-
40%
a) Suppress the concentration of free aniline available for coupling
-
20%
b) Suppress hydrolysis of phenol
-
27%
c) Ensure a stoichiometric amount of nitrous acid
-
13%
d) Neutralise the base liberated
Q.11.
Among the following which one does not act as an intermediate in Hofmann rearrangement ... [ AFMC 2009]
-
14%
a) RNCO
-
29%
b)
-
21%
c)
-
36%
d) RNC
Q.12.
Melting points are normally highest for .. [ AFMC 2009]
-
25%
a) tertiary amides
-
25%
b) secondary amides
-
44%
c) primary amides
-
6%
d) amines
Q.13.
Phenyl isocyanide test is used to identify ... [ AFMC 1998]
-
44%
a) Aromatic primary amine
-
25%
b) Aromatic tertiary amine
-
19%
c) Quaternary ammonium compound
-
12%
d) secondary amine
Q.14.
Which of the following reacts with chloroform and base to form phenyl isocyanide [ AFMC 1997]
-
25%
a) phenol
-
6%
b) benzene
-
38%
c) nitrobenzene
-
31%
d) aniline
Q.15.
Primary and secondary amines are distinguished by
-
6%
a) NH3
-
47%
b) HNO2
-
12%
c) HOCl
-
35%
d) Br2/KOH
Q.16.
Benzaldehyde reacts with methyl amine to give ... [ Roorkee 1997]
-
6%
a) C6H5NH2
-
50%
b) C6H5CH2NH2
-
44%
c) C6H5CH = NCH3
-
0%
d) C6H5CONH2
Q.17.
Which of the following gives primary amine on reduction?
-
18%
a) CH3CH2 - O - N = O
-
18%
b) CH3CH2NC
-
53%
c) CH3CH2NO2
-
12%
d) C6H5N = NC6H5
Explanation
Q.18.
Which reaction sequence would be best to prepare 3-chloroaniline from benzene?
-
20%
a) Nitration, reduction, chlorination
-
47%
b) Nitration, reduction, acetylation, chlorination, hydrolysis
-
13%
c) Chlorination, nitration, reduction
-
20%
d) Nitration, chlorination, reduction
Explanation
Q.19.
The order of basic strength among the following amines in benzene solution is
-
27%
a) CH3NH2 > (CH3)2NH > (CH3)3N
-
20%
b) (CH3)3N > CH3NH2 > (CH3)2NH
-
13%
c) CH3NH2 > (CH3)3N > (CH3)2NH
-
40%
d) (CH3)3N > (CH3)2NH > CH3 NH2
Q.20.
An organic amino compound reacts with aqueous nitrous acid at low temperature to produce an oily nitrosoamine. the compound is ... [ DEC 2003]
-
0%
a) CH3NH2
-
29%
b) CH3CH2NH.CH2CH3
-
43%
c) (CH3CH2)3N
-
29%
d) CH3CH2NH2
Q.21.
Which of the following reactions will not give primary amine?
-
31%
a)
-
31%
b)
-
8%
c)
-
31%
d)
Explanation
Q.22.
Aniline reacts with NaNO2 and HCl at room temperature to give
-
0%
a) Phenol
-
0%
b) Nitroaniline
-
92%
c) Diazonium chloride
-
8%
d) Chloroaniline
Explanation
Q.23.
Which is formed when (CH3)4NOH is heated?
-
17%
a) (C2H5)2NH
-
42%
b) (CH3)3N
-
33%
c) CH3NH2
-
8%
d) C2H5NH2
Explanation
Q.24.
Tautomerism will be exibited by
-
9%
a) (CH3)2NH
-
64%
b) RCH2NO2
-
18%
c) (CH3)3CNO
-
9%
d) R3CNO2
Explanation
Q.25.
Which one of the following is the strongest base in aqueous solution? [ AIEEE 2007]
-
15%
a) Methyl amine
-
15%
b) Trimethyl amine
-
38%
c) Aniline
-
31%
d) Dimethyl amine
Q.26.
Which one of the following compound when heated with KOH and primary amines gives carbylamine test? [ Roorkee 1990]
-
31%
a) CHCl3
-
23%
b) CH3Cl
-
46%
c) CCl4
-
0%
d) CH3NC
Explanation
Q.27.
Treatment of ammonia with excess of ethyl iodide will yield
-
0%
a) Triethyl amine
-
42%
b) Tetraethylammonium iodide
-
17%
c) Diethyl amine
-
42%
d) Ethyl amine
Explanation
Q.28.
ion Q26) X in the following reaction is .... ... [ DEC 2006]
-
33%
a)
-
33%
b)
-
25%
c)
-
8%
d)
Explanation
Q.29.
Tertiary nitro compounds canot show tautomerism because ... [ KCET 1993]
-
0%
a) they are very stable
-
17%
b) isomerises to give sec.nitro compounds
-
58%
c) do not have labile H-atom
-
25%
d) they are highly reactive
Explanation
Q.30.
Hinsberg's reagent is used to distinguish ... ... [ DEC 2005]
-
33%
a) Amines
-
8%
b) Alcohols
-
0%
c) Acids
-
58%
d) Amides