JEE-MAIN SERIES Chemistry
Alkenes
14 previous year questions.
Volume: 14 Ques
Yield: Medium
High-Yield Trend
2
2026 1
2025 5
2023 4
2022 1
2021 1
2020 Chapter Questions 14 MCQs
01
PYQ 2020
medium
chemistry ID: jee-main
The major product formed in the following reaction is :
1
2
3
4
02
PYQ 2021
medium
chemistry ID: jee-main
What is the major product formed by on reaction with
1

2

3

4

03
PYQ 2022
medium
chemistry ID: jee-main
Given below are two statements.
Statement I: The presence of weaker π-bonds make alkenes less stable than alkanes.
Statement II: The strength of the double bond is greater than that of carbon-carbon single bond.
In the light of the above statements, choose the correct answer from the options given below.
Statement I: The presence of weaker π-bonds make alkenes less stable than alkanes.
Statement II: The strength of the double bond is greater than that of carbon-carbon single bond.
In the light of the above statements, choose the correct answer from the options given below.
1
Both Statement I and Statement II are correct.
2
Both Statement I and Statement II are incorrect.
3
Statement I is correct but Statement II is incorrect.
4
Statement I is incorrect but Statement II is correct.
04
PYQ 2022
easy
chemistry ID: jee-main
Number of grams of bromine that will completely react with 5.0 g of pent-1-ene is ______ × 10–2 g. (Atomic mass of Br = 80 g/mol) [Nearest integer]
05
PYQ 2022
medium
chemistry ID: jee-main
The major product in the following reaction is:

1

2

3

4

06
PYQ 2022
easy
chemistry ID: jee-main
The major product (P) of the given reaction is (where, Me is –CH3)

07
PYQ 2023
easy
chemistry ID: jee-main
Given below are two statements, one is labelled as Assertion and the other is labelled as Reason
Assertion A: Carbon forms two important oxides - and is neutral whereas is acidic in nature
Reason R : can combine with water in a limited way to form carbonic acid, while is sparingly soluble in water
In the light of the above statements, choose the most appropriate answer from the options given below
Assertion A: Carbon forms two important oxides - and is neutral whereas is acidic in nature
Reason R : can combine with water in a limited way to form carbonic acid, while is sparingly soluble in water
In the light of the above statements, choose the most appropriate answer from the options given below
1
A is not correct but is correct
2
Both and are correct but is NOT the correct explanation of
3
Both and are correct and is the correct explanation of
4
A is correct but is not correct
08
PYQ 2023
medium
chemistry ID: jee-main
Choose the correct set of reagents for the following conversion trans
1
, alc
2
, alc Lindlar Catalyst
3
, aq Lindlar Catalyst
4
09
PYQ 2023
easy
chemistry ID: jee-main
The molality of a 10% (v/v) solution of di-bromine solution in (carbon tetrachloride) is . . (Nearest integer)
Given:
Molar mass of
Atomic mass of
Atomic mass of
Density of dibromine =
Density of
10
PYQ 2023
medium
chemistry ID: jee-main
Find out the major product from the following reaction


1

2

3

4

11
PYQ 2023
medium
chemistry ID: jee-main

Consider the above reaction and identify the product B.
1

2

3

4

12
PYQ 2025
hard
chemistry ID: jee-main
The reactions which cannot be applied to prepare an alkene by elimination, are
Choose the correct answer from the options given below:
1
B & E Only
2
B, C & D Only
3
A, C & D Only
4
B & D Only
13
PYQ 2026
hard
chemistry ID: jee-main
As compared with chlorocyclohexane, which of the following statements correctly apply to chlorobenzene?
The magnitude of negative charge is more on chlorine atom.
The C--Cl bond has partial double bond character.
C--Cl bond is less polar.
C--Cl bond is longer due to repulsion between delocalised electrons of the aromatic ring and lone pairs of electrons of chlorine.
The C--Cl bond is formed using hybridised orbital of carbon.
Choose the correct answer from the options given below:
The magnitude of negative charge is more on chlorine atom.
The C--Cl bond has partial double bond character.
C--Cl bond is less polar.
C--Cl bond is longer due to repulsion between delocalised electrons of the aromatic ring and lone pairs of electrons of chlorine.
The C--Cl bond is formed using hybridised orbital of carbon.
Choose the correct answer from the options given below:
1
B, C and D Only
2
A, C and E Only
3
A, D and E Only
4
B, C and E Only
14
PYQ 2026
medium
chemistry ID: jee-main
Arrange the following alkenes in the decreasing order of stability:
Choose the correct answer from the options given below:
1
III II I IV
2
I III II IV
3
III I II IV
4
I III IV II






