1
JEE Main 2025 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match the LIST-I with LIST-II

LIST-I LIST-II
A. Carbocation I. Species that can supply a pair of electrons.
B. C-Free radical II. Species that can receive a pair of electrons.
C. Nucleophile III. sp2 hybridized carbon with empty p-orbital.
D. Electrophile IV. sp2/sp3 hybridized carbon with one unpaired electron.

Choose the correct answer from the options given below:

A

A-IV, B-II, C-III, D-I

B

A-II, B-III, C-I, D-IV

C

A-III, B-IV, C-I, D-II

D

A-III, B-IV, C-II, D-I

2
JEE Main 2025 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

What is the correct IUPAC name of the compound?

JEE Main 2025 (Online) 8th April Evening Shift Chemistry - Basics of Organic Chemistry Question 15 English
A

1-Ethylcyclopent-2-en-3-ol

B

4-Ethylcyclopent-2-en-1-ol

C

1-Ethyl-3-hydroxycyclopent-2-ene

D

4-Ethyl-1-hydroxycyclopent-2-ene

3
JEE Main 2025 (Online) 7th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The descending order of basicity of the following amines is :

JEE Main 2025 (Online) 7th April Evening Shift Chemistry - Basics of Organic Chemistry Question 10 English 1

JEE Main 2025 (Online) 7th April Evening Shift Chemistry - Basics of Organic Chemistry Question 10 English 2

JEE Main 2025 (Online) 7th April Evening Shift Chemistry - Basics of Organic Chemistry Question 10 English 3

(D) $ \mathrm{CH}_3 \mathrm{NH}_2$

(E) $\left(\mathrm{CH}_3\right)_2 \mathrm{NH}$

Choose the correct answer from the options given below :

A

E > A > D > C > B

B

E > D > A > B > C

C

E > D > B > A > C

D

B > E > D > A > C

4
JEE Main 2025 (Online) 7th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The number of optically active products obtained from the complete ozonolysis of the given compound is :

JEE Main 2025 (Online) 7th April Evening Shift Chemistry - Basics of Organic Chemistry Question 9 English
A

4

B

0

C

2

D

1

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