1
JEE Main 2020 (Online) 2nd September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
If AB4 molecule is a polar molecule, a possible geometry of AB4 is
A
Tetrahedral
B
see-saw
C
Square pyramidal
D
Square planar
2
JEE Main 2020 (Online) 9th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The number of sp2 hybrid orbitals in a molecule of benzene is :
A
24
B
12
C
6
D
18
3
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
If the magnetic moment of a dioxygen species is 1.73 B.M, it may be :
A
$$O_2^ - $$ or $$O_2^ + $$
B
O2, $$O_2^ - $$ or $$O_2^ + $$
C
O2 or $$O_2^ + $$
D
O2 or $$O_2^ - $$
4
JEE Main 2020 (Online) 8th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Arrange the following bonds according to their average bond energies in descending order :
C–Cl, C–Br, C–F, C–I
A
C–Br > C–I > C–Cl > C–F
B
C–Cl > C–Br > C–I > C–F
C
C–I > C–Br > C–Cl > C–F
D
C–F > C–Cl > C–Br > C–I
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