1
JEE Advanced 2020 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1
Change Language
Newman projections P, Q, R and S are shown below :

JEE Advanced 2020 Paper 1 Offline Chemistry - Basics of Organic Chemistry Question 26 English

Which one of the following options represents identical molecules?
A
P and Q
B
Q and S
C
Q and R
D
R and S
2
JEE Advanced 2020 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1
Change Language
Which of the following structures has the IUPAC name

3-ethynyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid?
A
JEE Advanced 2020 Paper 1 Offline Chemistry - Basics of Organic Chemistry Question 25 English Option 1
B
JEE Advanced 2020 Paper 1 Offline Chemistry - Basics of Organic Chemistry Question 25 English Option 2
C
JEE Advanced 2020 Paper 1 Offline Chemistry - Basics of Organic Chemistry Question 25 English Option 3
D
JEE Advanced 2020 Paper 1 Offline Chemistry - Basics of Organic Chemistry Question 25 English Option 4
3
JEE Advanced 2020 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1
Change Language
The Fischer projection of D-erythrose is shown below :

JEE Advanced 2020 Paper 1 Offline Chemistry - Basics of Organic Chemistry Question 28 English 1

D-erythrose and its isomers are listed as P, Q, R, and S in Column - I. Choose the correct relationship of P, Q, R, and S with D-erythrose from Column - II.
JEE Advanced 2020 Paper 1 Offline Chemistry - Basics of Organic Chemistry Question 28 English 2
A
P Q R S
2 3 2 2
B
P Q R S
3 1 1 2
C
P Q R S
2 1 1 3
D
P Q R S
2 3 3 1
4
JEE Advanced 2014 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1

Isomers of hexane, based on their branching, can be divided into three distinct classes as shown in the figure.

JEE Advanced 2014 Paper 2 Offline Chemistry - Basics of Organic Chemistry Question 18 English

The correct order of their boiling point is

A
I > II > III
B
III > II > I
C
II > III > I
D
III > I > III
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