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.
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:

Fig. Chemical Reaction
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)

Fig.
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
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.
Consider the above reaction and identify the product B.

1
Consider the above reaction and identify the product B.
2
Consider the above reaction and identify the product B.
3
Consider the above reaction and identify the product B.
4
Consider the above reaction and identify the product B.
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:
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