1
JEE Main 2023 (Online) 30th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The most stable carbocation for the following is:

JEE Main 2023 (Online) 30th January Evening Shift Chemistry - Basics of Organic Chemistry Question 9 English
A
b
B
d
C
c
D
a
2
JEE Main 2023 (Online) 30th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct order of $\mathrm{pK}_{\mathrm{a}}$ values for the following compounds is:

JEE Main 2023 (Online) 30th January Evening Shift Chemistry - Basics of Organic Chemistry Question 8 English
A
$ \mathrm{a}>\mathrm{b}>\mathrm{c}>\mathrm{d}$
B
$c > a > d > b$
C
$\mathrm{b}>\mathrm{d}>\mathrm{a}>\mathrm{c}$
D
$b > a > d > c$
3
JEE Main 2023 (Online) 29th January Morning Shift
MCQ (Single Correct Answer)
+4
-1

The increasing order of $$\mathrm{pK_a}$$ for the following phenols is

(A) 2, 4 - Dinitrophenol

(B) 4 - Nitrophenol

(C) 2, 4, 5 - Trimethylphenol

(D) Phenol

(E) 3-Chlorophenol

Choose the correct answer from the option given below :

A
(A), (E), (B), (D), (C)
B
(C), (E), (D), (B), (A)
C
(C), (D), (E), (B), (A)
D
(A), (B), (E), (D), (C)
4
JEE Main 2023 (Online) 25th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

List I
Isomeric pairs
List II
Type of isomers
A. Propanamine and N-Methylethanamine I. Metamers
B. Hexan-2-one and Hexan-3-one II. Positional isomers
C. Ethanamide and Hydroxyethanimine III. Functional isomers
D. o-nitrophenol and p-nitrophenol IV. Tautomers

Choose the correct answer from the options given below :

A
A-III, B-I, C-IV, D-II
B
A-III, B-IV, C-I, D-II
C
A-II, B-III, C-I, D-IV
D
A-IV, B-III, C-I, D-II
JEE Main Subjects
EXAM MAP
Joint Entrance Examination
JEE MainJEE AdvancedWB JEE
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Medical
NEET