Haloalkanes and Haloarenes PYQs - Last 10 Years
JEE Main / Chemistry / Organic Chemistry / 168 recent questions
ChemistryOrganic Chemistry2017-2026
Practice 168 JEE Main Chemistry questions from Haloalkanes and Haloarenes. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
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2017-2026
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Last 10 Years Haloalkanes and Haloarenes Questions
Showing 50 of 168 filtered questions.
1Haloalkanes And Haloarenes
Given below are two statements :
Statement I : Due to increase in van der Waals forces, the order of boiling points is $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{I}>\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{I}>\mathrm{CH}_3 \mathrm{I}$.
$...
Statement I : Due to increase in van der Waals forces, the order of boiling points is $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{I}>\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{I}>\mathrm{CH}_3 \mathrm{I}$.
$...
MCQ+4 / -12026
2Haloalkanes And Haloarenes
Given below are two statements :
Statement I : 3-phenylpropene reacts with HBr and gives secondary alkyl bromide having a chiral carbon atom as the major product.
Statement II : Aryl chlorides and aryl cyanides can be prepared by Sandmeyer ...
Statement I : 3-phenylpropene reacts with HBr and gives secondary alkyl bromide having a chiral carbon atom as the major product.
Statement II : Aryl chlorides and aryl cyanides can be prepared by Sandmeyer ...
MCQ+4 / -12026
3Haloalkanes And Haloarenes
RMgI when treated with ice cold water liberated a gas which occupied $1.4 \mathrm{dm}^3 / \mathrm{g}$ at STP. The gas produced is further reacted with iodine in presence of $\mathrm{HIO}_3$ to give compound $(\mathrm{X})$. Compound $(\mathr...
INTEGER+4 / -12026
4Haloalkanes And Haloarenes
\(\text { Match the LIST-I with LIST-II }\)
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MCQ+4 / -12026
5Haloalkanes And Haloarenes
Given below are two statements :Statement (I) : Benzyl chloride reacts faster in $S_N1$ mechanism than ethyl chloride.Statement (II) : Ethyl carbocation intermediate is less stabilized by hyperconjugation than benzyl carbocation by resonanc...
MCQ+4 / -12026
6Haloalkanes And Haloarenes
Correct statements regarding alkyl halides (R–X) among the following are : A. Alcohol being less polar solvent as compared to water, alcoholic KOH favours elimination reaction with R–X. B. Order of reactivity towards SN1 mechanism is C6H5–C...
MCQ+4 / -12026
7Haloalkanes And Haloarenes
$\mathrm{Ph}-\mathrm{CH}=\mathrm{CH}_2 \xrightarrow[\mathrm{HBr}]{(\mathrm{PhCOO})_2}$ Product
Consider the above reaction
A. The reaction proceeds through a more stable radical intermediate.
B. The role of peroxide is to generate $${H^ \bu...
Consider the above reaction
A. The reaction proceeds through a more stable radical intermediate.
B. The role of peroxide is to generate $${H^ \bu...
MCQ+4 / -12026
8Haloalkanes And Haloarenes
Consider the following reactions giving major product. Identify the correct reaction.
MCQ+4 / -12026
9Haloalkanes And Haloarenes
Given below are two statements :
Statement I : ' $\mathrm{C}-\mathrm{Cl}$ ' bond is stronger in $\mathrm{CH}_2=\mathrm{CH}-\mathrm{Cl}$ than $\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{Cl}$
Statement II : The given optically active molecule, on
h...
Statement I : ' $\mathrm{C}-\mathrm{Cl}$ ' bond is stronger in $\mathrm{CH}_2=\mathrm{CH}-\mathrm{Cl}$ than $\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{Cl}$
Statement II : The given optically active molecule, on
h...
MCQ+4 / -12026
10Haloalkanes And Haloarenes
Match the List-I with List-II
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MCQ+4 / -12026
11Haloalkanes And Haloarenes
Consider all the structural isomers with molecular formula $\mathrm{C}_5 \mathrm{H}_{11} \mathrm{Br}$ are separately treated with $\mathrm{KOH}(\mathrm{aq})$ to give respective substitution products, without any rearrangement. The number of...
INTEGER+4 / -12026
12Haloalkanes And Haloarenes
\(\text { Consider the following compounds }\)
\(\text { Arrange these compounds in the increasing order of reactivity with nitrating mixture. }\)
\(\text { Arrange these compounds in the increasing order of reactivity with nitrating mixture. }\)
MCQ+4 / -12026
13Haloalkanes And Haloarenes
The correct order of reactivity of $\mathrm{CH}_3 \mathrm{Br}$ in methanol with the following nucleophiles is
$\mathrm{F}^{-}, \mathrm{I}^{-}, \mathrm{C}_2 \mathrm{H}_5 \mathrm{O}^{-}$and $\mathrm{C}_6 \mathrm{H}_5 \mathrm{O}^{-}$
$\mathrm{F}^{-}, \mathrm{I}^{-}, \mathrm{C}_2 \mathrm{H}_5 \mathrm{O}^{-}$and $\mathrm{C}_6 \mathrm{H}_5 \mathrm{O}^{-}$
MCQ+4 / -12026
14Haloalkanes And Haloarenes
The correct order of the rate of reaction of the following reactants with nucleophile by $\mathrm{S}_{\mathrm{N}} 1$ mechanism is :
(Given : Structures I and II are rigid)
(Given : Structures I and II are rigid)
MCQ+4 / -12026
15Haloalkanes And Haloarenes
As compared with chlorocyclohexane, which of the following statements correctly apply to chlorobenzene?
A. The magnitude of negative charge is more on chlorine atom.
B. The $\mathrm{C}-\mathrm{Cl}$ bond has partial double bond character.
C....
A. The magnitude of negative charge is more on chlorine atom.
B. The $\mathrm{C}-\mathrm{Cl}$ bond has partial double bond character.
C....
MCQ+4 / -12026
16Haloalkanes And Haloarenes
The correct order of reactivity of the following benzyl halides towards reaction with KCN is :
MCQ+4 / -12026
17Haloalkanes And Haloarenes
The correct order of the rate of the reaction for the following reaction with respect to nucleophiles is :${CH_3Br + Nu^- \longrightarrow CH_3Nu + Br^-}$
MCQ+4 / -12026
18Haloalkanes And Haloarenes
Which one of the following reactions will not lead to the desired ether formation in major proportion?
(iso- $\mathrm{Bu} \Rightarrow$ isobutyl, sec $-\mathrm{Bu} \Rightarrow$ sec-butyl, $\mathrm{nPr} \Rightarrow \mathrm{n}$-propyl, $$ { }^...
(iso- $\mathrm{Bu} \Rightarrow$ isobutyl, sec $-\mathrm{Bu} \Rightarrow$ sec-butyl, $\mathrm{nPr} \Rightarrow \mathrm{n}$-propyl, $$ { }^...
MCQ+4 / -12025
19Haloalkanes And Haloarenes
Choose the correct set of reagents for the following conversion.
MCQ+4 / -12025
20Haloalkanes And Haloarenes
'P' is
MCQ+4 / -12025
21Haloalkanes And Haloarenes
Given below are two statements :
Statement (I) : Alcohols are formed when alkyl chlorides are treated with aqueous potassium hydroxide by elimination reaction.
Statement (II) : In alcoholic potassium hydroxide, alkyl chlorides form alkenes ...
Statement (I) : Alcohols are formed when alkyl chlorides are treated with aqueous potassium hydroxide by elimination reaction.
Statement (II) : In alcoholic potassium hydroxide, alkyl chlorides form alkenes ...
MCQ+4 / -12025
22Haloalkanes And Haloarenes
Consider the following molecule(X).
The major product formed when the given molecule $(X)$ is treated with $\mathrm{HBr}(1 \mathrm{eq})$ is :
The major product formed when the given molecule $(X)$ is treated with $\mathrm{HBr}(1 \mathrm{eq})$ is :
MCQ+4 / -12025
23Haloalkanes And Haloarenes
\(\text {In the following series of reactions identify the major products } \mathrm{A} \& \mathrm{~B} \text { respectively }\)
MCQ+4 / -12025
24Haloalkanes And Haloarenes
Consider the above sequence of reactions. 151 g of 2-bromopentane is made to react. Yield of major product P is $80 \%$ whereas Q is $100 \%$.
Mass of product Q obtained is________ g.
(Given molar mass in $\mathrm{g} \mathrm{mol}^{-1} \math...
Mass of product Q obtained is________ g.
(Given molar mass in $\mathrm{g} \mathrm{mol}^{-1} \math...
INTEGER+4 / -12025
25Haloalkanes And Haloarenes
Which among the following halides will generate the most stable carbocation in the nucleophilic substitution reaction?
MCQ+4 / -12025
26Haloalkanes And Haloarenes
Consider the following sequence of reactions:
11.25 mg of chlorobenzene will produce ___________$\times 10^{-1} \mathrm{mg}$ of product B.
(Consider the reactions result in complete conversion.)
[Given molar mass of $\mathrm{C}, \mathrm{H...
11.25 mg of chlorobenzene will produce ___________$\times 10^{-1} \mathrm{mg}$ of product B.
(Consider the reactions result in complete conversion.)
[Given molar mass of $\mathrm{C}, \mathrm{H...
INTEGER+4 / -12025
27Haloalkanes And Haloarenes
The products A and B in the following reactions, respectively are
$\mathrm{A} \stackrel{\mathrm{Ag}-\mathrm{NO}_2}{\longleftrightarrow} \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Br} \xrightarrow{\mathrm{AgCN}} \mathrm{B}$
$\mathrm{A} \stackrel{\mathrm{Ag}-\mathrm{NO}_2}{\longleftrightarrow} \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Br} \xrightarrow{\mathrm{AgCN}} \mathrm{B}$
MCQ+4 / -12025
28Haloalkanes And Haloarenes
The major product of the following reaction is:
MCQ+4 / -12025
29Haloalkanes And Haloarenes
Given below are two statements:
Statement I: The conversion proceeds well in the less polar medium.
$$\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Cl} \xrightarrow{\mathrm{HO}^{-}} \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_...
Statement I: The conversion proceeds well in the less polar medium.
$$\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Cl} \xrightarrow{\mathrm{HO}^{-}} \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_...
MCQ+4 / -12025
30Haloalkanes And Haloarenes
Following are the four molecules "P", "Q", "R" and "S".
Which one among the four molecules will react with $\mathrm{H}-\mathrm{Br}_{(\mathrm{aq})}$ at the fastest rate?
Which one among the four molecules will react with $\mathrm{H}-\mathrm{Br}_{(\mathrm{aq})}$ at the fastest rate?
MCQ+4 / -12025
31Haloalkanes And Haloarenes
The structure of the major product formed in the following reaction is :
MCQ+4 / -12025
32Haloalkanes And Haloarenes
Propane molecule on chlorination under photochemical condition gives two di-chloro products, " $x$ " and " $y$ ". Amongst " $x$ " and " $y$ ", " $x$ " is an optically active molecule. How many tri-chloro products (consider only structural i...
MCQ+4 / -12025
33Haloalkanes And Haloarenes
The ascending order of relative rate of solvolysis of following compounds is :
MCQ+4 / -12025
34Haloalkanes And Haloarenes
Identify the products [A] and [B], respectively in the following reaction:
MCQ+4 / -12025
35Haloalkanes And Haloarenes
Given below are two statements :
Statement I : $\quad \mathrm{CH}_3-\mathrm{O}-\mathrm{CH}_2-\mathrm{Cl}$ will undergo $\mathrm{S}_{\mathrm{N}} 1$ reaction though it is a primary halide.
Statement II : will not undergo $\mathrm{S}_{\mathrm...
Statement I : $\quad \mathrm{CH}_3-\mathrm{O}-\mathrm{CH}_2-\mathrm{Cl}$ will undergo $\mathrm{S}_{\mathrm{N}} 1$ reaction though it is a primary halide.
Statement II : will not undergo $\mathrm{S}_{\mathrm...
MCQ+4 / -12025
36Haloalkanes And Haloarenes
The maximum number of RBr producing 2-methylbutane by above sequence of reactions is
__________ . (Consider the structural isomers only)
MCQ+4 / -12025
37Haloalkanes And Haloarenes
In the following sequence of reaction, the major products B and C respectively are :
MCQ+4 / -12024
38Haloalkanes And Haloarenes
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : \(\mathrm{S}_{\mathrm{N}} 2\) reaction of \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{Br}\) occurs more readily...
Assertion (A) : \(\mathrm{S}_{\mathrm{N}} 2\) reaction of \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{Br}\) occurs more readily...
MCQ+4 / -12024
39Haloalkanes And Haloarenes
Which among the following compounds will undergo fastest SN2 reaction.
MCQ+4 / -12024
40Haloalkanes And Haloarenes
The ratio of number of oxygen atoms to bromine atoms in the product Q is _________ \(\times 10^{-1}\).
INTEGER+4 / -12024
41Haloalkanes And Haloarenes
The number of halobenzenes from the following that can be prepared by Sandmeyer's reaction is _________
INTEGER+4 / -12024
42Haloalkanes And Haloarenes
Identify the major product in the following reaction.
MCQ+4 / -12024
43Haloalkanes And Haloarenes
Identify the correct set of reagents or reaction conditions '\(X\)' and '\(Y\)' in the following set of transformation.
MCQ+4 / -12024
44Haloalkanes And Haloarenes
Identify B and C and how are A and C related?
MCQ+4 / -12024
45Haloalkanes And Haloarenes
Product P is
MCQ+4 / -12024
46Haloalkanes And Haloarenes
\(\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Br}+\mathrm{NaOH} \xrightarrow{\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}} \text { Product 'A' }\)
Consider the above reactions, identify product B and product C.
Consider the above reactions, identify product B and product C.
MCQ+4 / -12024
47Haloalkanes And Haloarenes
Find out the major product formed from the following reaction. \([\mathrm{Me}:-\mathrm{CH}_3]\)
MCQ+4 / -12024
48Haloalkanes And Haloarenes
The total number of hydrogen atoms in product A and product B is _________.
INTEGER+4 / -12024
49Haloalkanes And Haloarenes
The product (C) in the below mentioned reaction is :
$$\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Br} \xrightarrow[\Delta]{\mathrm{KOH}_{(\text {alc) }}} \mathrm{A} \xrightarrow{\mathrm{HBr}} \mathrm{B} \xrightarrow[\mathrm{KOH}_{(\m...
$$\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Br} \xrightarrow[\Delta]{\mathrm{KOH}_{(\text {alc) }}} \mathrm{A} \xrightarrow{\mathrm{HBr}} \mathrm{B} \xrightarrow[\mathrm{KOH}_{(\m...
MCQ+4 / -12024
50Haloalkanes And Haloarenes
Identify A and B in the following reaction sequence.
MCQ+4 / -12024