1
JEE Main 2023 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

According to MO theory the bond orders for $$\mathrm{O}$$$$_2^{2 - }$$, $$\mathrm{CO}$$ and $$\mathrm{NO^+}$$ respectively, are

A
1, 3 and 3
B
2, 3 and 3
C
1, 2 and 3
D
1, 3 and 2
2
JEE Main 2023 (Online) 29th January Morning Shift
MCQ (Single Correct Answer)
+4
-1

The magnetic behaviour of $$\mathrm{Li_2O,Na_2O_2}$$ and $$\mathrm{KO_2}$$, respectively, are

A
paramagnetic, paramagnetic and diamagnetic
B
paramagnetic, diamagnetic and paramagnetic
C
diamagnetic, paramagnetic and diamagnetic
D
diamagnetic, diamagnetic and paramagnetic
3
JEE Main 2023 (Online) 29th January Morning Shift
MCQ (Single Correct Answer)
+4
-1

The bond dissociation energy is highest for

A
Cl$$_2$$
B
I$$_2$$
C
Br$$_2$$
D
F$$_2$$
4
JEE Main 2023 (Online) 25th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Statement I : Dipole moment is a vector quantity and by convention it is depicted by a small arrow with tail on the negative centre and head pointing towards the positive centre.

Statement II : The crossed arrow of the dipole moment symbolizes the direction of the shift of charges in the molecules.

In the light of the above statements, choose the most appropriate answer from the options given below :

A
Statement I is correct but Statement II is incorrect
B
Statement I is incorrect but Statement II is correct
C
Both Statement I and Statement II are correct
D
Both Statement I and Statement II are incorrect
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