Haloalkanes and Haloarenes
185 Questions
2019
JEE Mains
MCQ
JEE Main 2019 (Online) 9th January Morning Slot
The major product of the following reaction is :
A.
B.
C.
D.
2018
JEE Mains
MCQ
JEE Main 2018 (Online) 16th April Morning Slot
The most polar compound among the following is :
A.
B.
C.
D.
2018
JEE Mains
MCQ
JEE Main 2018 (Online) 16th April Morning Slot
The major product of the following reaction is :
A.
B.
C.
D.
2018
JEE Mains
MCQ
JEE Main 2018 (Offline)
The major product of the following reaction is:
A.
B.
C.
D.
2017
JEE Mains
MCQ
JEE Main 2017 (Online) 9th April Morning Slot
In the following reaction sequence :
The compound I is :
The compound I is :
A.
B.
C.
D.
2017
JEE Mains
MCQ
JEE Main 2017 (Online) 8th April Morning Slot
The major product of the following reaction is :
A.
CH2 = CHCH2CH = CHCH3
B.
CH2 = CHCH = CHCH2CH3
C.
CH3CH = C = CHCH2CH3
D.
CH3CH = CH − CH = CHCH3
2017
JEE Mains
MCQ
JEE Main 2017 (Online) 8th April Morning Slot
The major product of the following reaction is :
A.
B.
C.
D.
2017
JEE Mains
MCQ
JEE Main 2017 (Online) 8th April Morning Slot
Which of the following compounds will not undergo Friedel Craft’s reaction with benzene ?
A.
B.
C.
D.
2017
JEE Mains
MCQ
JEE Main 2017 (Offline)
Which of the following, upon treatment with tert-BuONa followed by addition of bromine water, fails to
decolorize the colour of bromine?
A.
B.
C.
D.
2017
JEE Mains
MCQ
JEE Main 2017 (Offline)
3-Methyl-pent-2-ene on reaction with HBr in presence of peroxide forms an addition product. The number
of possible stereoisomers for the product is :
A.
Zero
B.
Two
C.
Four
D.
Six
2017
JEE Mains
MCQ
JEE Main 2017 (Offline)
The increasing order of the reactivity of the following halides for the SN1 reaction is :
A.
(II) < (I) < (III)
B.
(I) < (III) < (II)
C.
(II) < (III) < (I)
D.
(III) < (II) < (I)
2017
JEE Mains
MCQ
JEE Main 2017 (Offline)
The major product obtained in the following reaction is :
A.
C6H5CH = CHC6H5
B.
(+) - C6H5CH(Ot-Bu)CH2C6H5
C.
(-) - C6H5CH(Ot-Bu)CH2C6H5
D.
($ \pm $) - C6H5CH(Ot-Bu)CH2C6H5
2016
JEE Mains
MCQ
JEE Main 2016 (Online) 10th April Morning Slot
Bromination of cyclohexene under conditions given below yields :
A.
B.
C.
D.
2016
JEE Mains
MCQ
JEE Main 2016 (Online) 10th April Morning Slot
Which one of the following reagents is not suitable for the elimination reaction ?
A.
NaOH/H2O
B.
NaOEt/EtOH
C.
NaOH/H2O-EtOH
D.
NaI
2015
JEE Mains
MCQ
JEE Main 2015 (Offline)
The synthesis of alkyl fluorides is best accomplished by:
A.
Sandmeyer’s reaction
B.
Finkelstein reaction
C.
Swarts reaction
D.
Free radical fluorination
2014
JEE Mains
MCQ
JEE Main 2014 (Offline)
In SN2 reactions, the correct order of reactivity for the following compounds:
CH3Cl, CH3CH 2Cl, (CH3)2CHCl and (CH3)3CCl is:
CH3Cl, CH3CH 2Cl, (CH3)2CHCl and (CH3)3CCl is:
A.
CH3CH2Cl > CH3Cl > (CH3)2CHCl > (CH3)3CCl
B.
(CH3)2CHCl > CH3CH2Cl > CH3Cl > (CH3)3CCl
C.
CH3Cl > (CH3)2CHCl > CH3CH2Cl > (CH3)3CCl
D.
CH3Cl > CH3CH2Cl > (CH3)2CHCl > (CH3)3CCl
2014
JEE Mains
MCQ
JEE Main 2014 (Offline)
The major organic compound formed by the reaction of 1, 1, 1– trichloroethane with silver powder is:
A.
2- Butyne
B.
2- Butene
C.
Acetylene
D.
Ethene
2013
JEE Mains
MCQ
JEE Main 2013 (Offline)
A solution of (–$l$) – chloro –1 – phenylethane in toluene racemises slowly in the presence of a small
amount of SbCl5, due to the formation of :
A.
carbene
B.
carbocation
C.
free radical
D.
carbanion
2013
JEE Mains
MCQ
JEE Main 2013 (Offline)
Compound $\left( A \right),\,{C_8}{H_9}Br,\,\,\,$ gives a white precipitate when warmed with alcoholic $AgN{O_3}.$ Oxidation of $(A)$ gives an acid $\left( B \right),$ ${C_8}{H_6}{O_4}.\,\,\left( B \right)$ easily forms anhydride on heating. Identify the compound $(A).$
A.
B.
C.
D.
2012
JEE Mains
MCQ
AIEEE 2012
What is DDT among the following?
A.
Greenhouse gas
B.
A fertilizer
C.
Biodegradable pollutant
D.
Non–biodegradable pollutant
2012
JEE Mains
MCQ
AIEEE 2012
Iodoform can be prepared from all except :
A.
Ethyl methyl ketone
B.
Isopropyl alcohol
C.
3–Methyl – 2– butanone
D.
Isobutyl alcohol
2012
JEE Mains
MCQ
AIEEE 2012
How many chiral compounds are possible on monochlorination of 2–methyl butane ?
A.
8
B.
2
C.
4
D.
6
2010
JEE Mains
MCQ
AIEEE 2010
Consider the following bromides :
The correct order of ${S_N}1$ reactive is
The correct order of ${S_N}1$ reactive is
A.
$B > C > A$
B.
$B > A > C$
C.
$C > B > A$
D.
$A > B > C$
2009
JEE Mains
MCQ
AIEEE 2009
Which of the following on heating with aqueous KOH, produces acetaldehyde ?
A.
CH3COCl
B.
CH3CH2Cl
C.
CH2ClCH2Cl
D.
CH3CHCl2
2008
JEE Mains
MCQ
AIEEE 2008
The organic chloro compound, which shows complete stereochemical inversion during a SN2 reaction,
is
A.
(C2H5)2CHC
B.
(CH3)3CCl
C.
(CH3)2CHCl
D.
CH3Cl
2007
JEE Mains
MCQ
AIEEE 2007
Which of the following is the correct order of decreasing SN2 reactivity?
A.
RCH2X > R3CX > R2CHX
B.
RCH2X > R2CHX >
R3CX
C.
R3CX > R2CHX > RCH2X
D.
R2CHX > R3CX > RCH2X
2006
JEE Mains
MCQ
AIEEE 2006
The structure of the major product formed in the following reaction
is
is
A.
B.
C.
D.
2006
JEE Mains
MCQ
AIEEE 2006
Fluorobenzene (C6H5F) can be synthesized in the laboratory
A.
by heating phenol with HF and KF
B.
from aniline by diazotisation followed by heating the diazonium salt with HBF4
C.
by direct fluorination of benzene with F2 gas
D.
by reacting bromobenzene with NaF solution
2006
JEE Mains
MCQ
AIEEE 2006
Reaction of trans-2-phenyl-1-bromocyclopentane on reaction with alcoholic KOH produces
A.
4-phenylcyclopentene
B.
2-phenylcyclopentene
C.
1-phenylcyclopentene
D.
3-phenylcyclopentene
Hughes and Ingold proposed that bimolecular elimination
reactions take place when the two groups to be eliminated are
trans and lie in one plane with the two carbon atoms to which
they are attached i.e. E2 reactions are stereoselectively trans.
2005
JEE Mains
MCQ
AIEEE 2005
Alkyl halides react with dialkyl copper reagents to give
A.
alkenes
B.
alkyl copper halides
C.
alkanes
D.
alkenyl halides
2005
JEE Mains
MCQ
AIEEE 2005
Elimination of bromine from 2-bromobutane results in the formation of-
A.
equimolar mixture of 1 and 2-butene
B.
predominantly 2-butene
C.
predominantly 1-butene
D.
predominantly 2-butyne
2005
JEE Mains
MCQ
AIEEE 2005
Tertiary alkyl halides are practically inert to substitution by SN2 mechanism because of
A.
insolubility
B.
instability
C.
inductive effect
D.
steric hindrance
2004
JEE Mains
MCQ
AIEEE 2004
The compound formed on heating chlorobenzene with chloral in the presence concentrated
sulphuric acid is
A.
gammexene
B.
hexachloroethane
C.
Freon
D.
DDT
2003
JEE Mains
MCQ
AIEEE 2003
Bottles containing C6H5l and C6H5CH2I lost their original labels. They were labelled A and B for testing A and B were separately taken in test tubes and boiled with NaOH solution. The end solution in each tube was made acidic with dilute HNO3 and then some AgNO3 solution was added. Substance B gave a yellow precipitate. Which one of the following statements is true for this experiment?
A.
A and C6H5CH2I
B.
B and C6H5I
C.
Addition of HNO3 was unnecessary
D.
A was C6H5I
2002
JEE Mains
MCQ
AIEEE 2002
The reaction :
${(CH)_3}C - Br\buildrel {{H_2}O} \over \longrightarrow {(CH)_3}C - OH$
${(CH)_3}C - Br\buildrel {{H_2}O} \over \longrightarrow {(CH)_3}C - OH$
A.
elimination reaction
B.
substitution reaction
C.
free radical reaction
D.
displacement reaction
