1
JEE Main 2020 (Online) 9th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
The number of sp2 hybrid orbitals in a molecule of benzene is :
A
24
B
12
C
6
D
18
2
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
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 $$O_2^ - $$
3
JEE Main 2020 (Online) 8th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
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
4
JEE Main 2020 (Online) 8th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
The number of bonds between sulphur and oxygen atoms in S2O82- and the number of bonds between sulphur and sulphur atoms in rhombic sulphur, respectively, are :
A
4 and 8
B
8 and 6
C
4 and 6
D
8 and 8
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