1
JEE Main 2022 (Online) 29th July Evening Shift
+4
-1

Given below are the quantum numbers for 4 electrons.

A. $$\mathrm{n}=3,l=2, \mathrm{~m}_{1}=1, \mathrm{~m}_{\mathrm{s}}=+1 / 2$$

B. $$\mathrm{n}=4,l=1, \mathrm{~m}_{1}=0, \mathrm{~m}_{\mathrm{s}}=+1 / 2$$

C. $$\mathrm{n}=4,l=2, \mathrm{~m}_{1}=-2, \mathrm{~m}_{\mathrm{s}}=-1 / 2$$

D. $$\mathrm{n}=3,l=1, \mathrm{~m}_{1}=-1, \mathrm{~m}_{\mathrm{s}}=+1 / 2$$

The correct order of increasing energy is

A
D < B < A < C
B
D < A < B < C
C
B < D < A < C
D
B < D < C < A
2
JEE Main 2022 (Online) 28th July Evening Shift
+4
-1

Given below are two statements: One is labelled as Assertion $$\mathbf{A}$$ and the other is labelled as Reason $$\mathbf{R}$$

Assertion $$\mathbf{A}$$ : Zero orbital overlap is an out of phase overlap.

Reason $$\mathbf{R}$$ : It results due to different orientation / direction of approach of orbitals.

In the light of the above statements, choose the correct answer from the options given below

A
Both A and R are true and R is the correct explanation of A
B
Both A and R are true but R is NOT the correct explanation of A
C
A is true but R is false
D
A is false but R is true
3
JEE Main 2022 (Online) 28th July Morning Shift
+4
-1

Identify the incorrect statement from the following.

A
A circular path around the nucleus in which an electron moves is proposed as Bohr's orbit.
B
An orbital is the one electron wave function $$(\psi)$$ in an atom.
C
The existence of Bohr's orbits is supported by hydrogen spectrum.
D
Atomic orbital is characterised by the quantum numbers $$\mathrm{n}$$ and $$l$$ only.
4
JEE Main 2022 (Online) 27th July Evening Shift
+4
-1

The correct decreasing order of energy for the orbitals having, following set of quantum numbers :

(A) n = 3, l = 0, m = 0

(B) n = 4, l = 0, m = 0

(C) n = 3, l = 1, m = 0

(D) n = 3, l = 2, m = 1

is :

A
(D) > (B) > (C) > (A)
B
(B) > (D) > (C) > (A)
C
(C) > (B) > (D) > (A)
D
(B) > (C) > (D) > (A)
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