1
JEE Main 2020 (Online) 4th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following will react with CHCl3 + alc. KOH?
A
Adenine and thymine
B
Thymine and proline
C
Adenine and lysine
D
Adenine and proline
2
JEE Main 2020 (Online) 4th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
What are the functional groups present in the structure of maltose?
A
One acetal and one ketal
B
One ketal and one hemiketal
C
Two acetals
D
One acetal and one hemiacetal
3
JEE Main 2020 (Online) 4th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The intermolecular potential energy for the molecules A, B, C and D given below suggests that : JEE Main 2020 (Online) 4th September Morning Slot Chemistry - Chemical Bonding & Molecular Structure Question 189 English
A
A-B has the stiffest bond
B
A-D has the shortest bond length
C
A-A has the largest bond enthalpy
D
D is more electronegative than other atoms
4
JEE Main 2020 (Online) 4th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The region in the electromagnetic spectrum where the Balmar series lines appear is :
A
Microwave
B
Ultraviolet
C
Visible
D
Infrared

JEE Main Papers

All year-wise previous year question papers

2023
2021