1
JEE Main 2022 (Online) 27th July Evening Shift
+4
-1

Match List - I with List - II.

List - I List - II
(A) $$\psi_{\mathrm{MO}}=\psi_{\mathrm{A}}-\psi_{\mathrm{B}}$$ (I) Dipole moment
(B) $$\mu=Q \times r$$ (II) Bonding molecular orbital
(C) $$\frac{\mathrm{N}_{\mathrm{b}}-\mathrm{N}_{\mathrm{a}}}{2}$$ (III) Anti-bonding molecular orbital
(D) $$\psi_{\mathrm{MO}}=\psi_{\mathrm{A}}+\psi_{\mathrm{B}}$$ (IV) Bond order

Choose the correct answer from the options given below :

A
$$(\mathrm{A})-(\mathrm{II}),(\mathrm{B})-(\mathrm{I}),(\mathrm{C})-(\mathrm{IV}),(\mathrm{D})-(\mathrm{III})$$
B
$$(\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{IV}),(\mathrm{C})-(\mathrm{I}),(\mathrm{D})-(\mathrm{II})$$
C
$$(\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{I}),(\mathrm{C})-(\mathrm{IV}),(\mathrm{D})-(\mathrm{II})$$
D
$$(\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{IV}),(\mathrm{C})-(\mathrm{II}),(\mathrm{D})-(\mathrm{I})$$
2
JEE Main 2022 (Online) 27th July Morning Shift
+4
-1

Given below are two statements.

Statement I: $$\mathrm{O}_{2}, \mathrm{Cu}^{2+}$$, and $$\mathrm{Fe}^{3+}$$ are weakly attracted by magnetic field and are magnetized in the same direction as magnetic field.

Statement II: $$\mathrm{NaCl}$$ and $$\mathrm{H}_{2} \mathrm{O}$$ are weakly magnetized in opposite direction to magnetic field.

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

A
Both Statement I and Statement II are correct.
B
Both Statement I and Statement II are incorrect.
C
Statement I is correct but Statement II is incorrect.
D
Statement I is incorrect but Statement II is correct.
3
JEE Main 2022 (Online) 27th July Morning Shift
+4
-1

The total number of $$\mathrm{Mn}=\mathrm{O}$$ bonds in $$\mathrm{Mn}_{2} \mathrm{O}_{7}$$ is __________.

A
4
B
5
C
6
D
3
4
JEE Main 2022 (Online) 26th July Evening Shift
+4
-1

Arrange the following in increasing order of their covalent character.

A. $$\mathrm{CaF}_{2}$$

B. $$\mathrm{CaCl}_{2}$$

C. $$\mathrm{CaBr}_{2}$$

D. $$\mathrm{CaI}_{2}$$

Choose the correct answer from the options given below.

A
B < A < C < D
B
A < B < C < D
C
A < B < D < C
D
A < C < B < D
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