Q.1.
Liquid hydrocarbons can be converted to a mixture of gaseous hydrocarbons by [ AIPMT 2010]
-
8%
a) Oxidation
-
25%
b) Cracking
-
42%
c) Distillation under reduced pressure
-
25%
d) Hydrolysis
Q.2.
Given are cyclohexanol (I), acetic acid (II) 2,4,6- trinitrophenol (III) and phenol (IV). In these the order of decreasing acidic character will be .. [ AIPMT 2010]
-
0%
a) III > II > IV > I
-
20%
b) II > III > I > IV
-
40%
c) II > III > IV > I
-
40%
d) III > IV > II > I
Q.3.
on Q336) In a set of reactions, ethyl benzene yielded a product D. [ AIPMT 2010]
-
0%
a)
-
25%
b)
-
25%
c)
-
50%
d)
Q.4.
Among the given compounds, the most susceptible to nucleophilic attack at the carbonyl group is : [ AIPMT 2010]
-
40%
a) CH3COOCH3
-
20%
b) CH3CONH2
-
20%
c) CH3COOCOCH3
-
20%
d) CH3COCl
Q.5.
Which one is most reactive towards electrophilic reagent? [ AIPMT 2011]
-
33%
a)
-
17%
b)
-
33%
c)
-
17%
d)
Q.6.
In the following the most stable conformation of n-butane is:[ AIPMT 2011]
-
17%
a)
-
50%
b)
-
17%
c)
-
17%
d)
Q.7.
Which one of the following is most reactive towards electrophilic reagent ?[ AIPMT 2011]
-
17%
a)
-
17%
b)
-
50%
c)
-
17%
d)
Q.8.
Which one is a nucleophilic substitution reaction among the following ? [ AIPMT 2011]
-
17%
a) CH3CHO + HCN → CH3CH(OH)CN
-
33%
b)
-
50%
c)
-
0%
d)
Q.9.
on Major product is
-
20%
a)
-
60%
b)
-
20%
c)
-
0%
d)
Q.10.
Among the following compounds the one that is most reactive towards electrophilic nitration is ..[ AIPMT 2012]
-
0%
a) Toluene
-
40%
b) Benzene
-
40%
c) Benzoic acid
-
20%
d) Nitrobenzene
Q.11.
Some meta-directing substituents in aromatic substitution are given. Which one is most deactivating? [ NEET 2013]
-
0%
a) —C ≡ N
-
17%
b) —SO3H
-
33%
c) —COOH
-
50%
d) —NO2
Q.12.
on Q346) The order of stability of the following tautomeric compounds is ..[ NEET 2013]
-
0%
a) I > II > III
-
80%
b) III > II > I
-
0%
c) II > I > III
-
20%
d) II > III > I
Q.13.
on Q347) Identify Z in the sequence of reaction :
-
0%
a) CH3(CH2)4–O–CH3
-
25%
b) CH3CH2–CH(CH3)–O–CH2CH3
-
75%
c) CH3–(CH2)3–O–CH2CH3
-
0%
d) (CH3)2CH2–O–CH2CH3
Q.14.
Which one is most reactive towards Nucleophilic addition reaction?
-
0%
a)
-
50%
b)
-
0%
c)
-
50%
d)
Q.15.
on Q349) What products are formed whenthe following compound is treated with Br2 in the presence of FeBr3?
-
0%
a)
-
60%
b)
-
20%
c)
-
20%
d)
Q.16.
on Q350) What is the name of following reaction
-
0%
a) Gatterman – Koch reaction
-
20%
b) Williamson Synthesis
-
80%
c) Williamson continuous etherification process
-
0%
d) Etard reaction
Q.17.
Which of the following is the most correct electron displacement for a nucleophilic reaction to take place ?
-
0%
a)
-
50%
b)
-
25%
c)
-
25%
d)
Q.18.
on Q352) A single compound of the structure [ NEET 2015]
-
25%
a)
-
50%
b)
-
25%
c)
-
0%
d)
Q.19.
In which of the following compounds, the C - Cl bond ionisation shall give most stable carbonium ion ?[ NEET 2015]
-
0%
a)
-
50%
b)
-
50%
c)
-
0%
d)
Q.20.
The reaction of C6H5CH = CHCH3 with HBr produces .. [ NEET 2014]
-
25%
a)
-
25%
b)
-
50%
c)
-
0%
d) C6H5CH2CH2CH2Br
Q.21.
2,3-Dimethyl-2-butene can be prepared by heating which of the following compounds with a strong acid ?[ NEET 2015]
-
33%
a) (CH3)2C=CH-CH2CH3
-
33%
b) (CH3)2CH-CH2-CH=CH2
-
33%
c) (CH3)3C-CH=CH2
-
0%
d)
Explanation
Q.22.
In the reaction with HCl, an alkene reacts in accordance with the Markovnikov's rule, to give a product 1-chloro-1-methylcyclohexane. The possible alkene is :-[ NEET 2015]
-
0%
a)
-
25%
b)
-
75%
c) a and b
-
0%
d)
Explanation
Q.23.
Which of the following statements is not correct for a nucleophile ?[ NEET 2016]
-
0%
a) Nucleophiles attack low e- density sites
-
50%
b) Nucleophiles are not electron seeking
-
50%
c) Nucleophile is a Lewis acid
-
0%
d) Ammonia is a nucleophile
Q.24.
hich of the following compounds shall not produced propene by reaction with HBr followed by elimination of direct only elimination reaction ?[ NEET 2016]
-
25%
a) H2C=C=O
-
0%
b)
-
50%
c)
-
25%
d)
Q.25.
Which one is the correct order of acidity? [NEET 2017]
-
17%
a) CH2=CH2 > CH3-CH=CH2 > CH3-C ≡CH > CH ≡ CH
-
33%
b) CH ≡ CH > CH3-C ≡CH > CH2=CH2 > CH3-CH3
-
33%
c) CH ≡CH > CH2=CH2 > CH2 =CH2 > CH3 - CH3
-
17%
d) CH3-CH3 > CH2 = CH2 > CH3 - C ≡CH > CH ≡ CH