1
JEE Main 2022 (Online) 25th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following sets of quantum numbers is not allowed?

A
$$ \mathrm{n}=3,1=2, \mathrm{~m}_{\mathrm{l}}=0, \mathrm{~s}=+\frac{1}{2} $$
B
$$ \mathrm{n}=3, \mathrm{l}=2, \mathrm{~m}_{\mathrm{l}}=-2, \mathrm{~s}=+\frac{1}{2} $$
C
$$ \mathrm{n}=3, \mathrm{l}=3, \mathrm{~m}_{\mathrm{l}}=-3, \mathrm{~s}=-\frac{1}{2} $$
D
$$ \mathrm{n}=3, \mathrm{l}=0, \mathrm{~m}_{1}=0, \mathrm{~s}=-\frac{1}{2} $$
2
JEE Main 2022 (Online) 30th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The number of radial nodes and total number of nodes in 4p orbital respectively are :

A
2 and 3
B
2 and 2
C
3 and 4
D
4 and 4
3
JEE Main 2022 (Online) 29th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following is the correct plot for the probability density $${\psi ^2}$$ (r) as a function of distance 'r' of the electron from the nucleus for 2s orbital?

A
JEE Main 2022 (Online) 29th June Evening Shift Chemistry - Structure of Atom Question 77 English Option 1
B
JEE Main 2022 (Online) 29th June Evening Shift Chemistry - Structure of Atom Question 77 English Option 2
C
JEE Main 2022 (Online) 29th June Evening Shift Chemistry - Structure of Atom Question 77 English Option 3
D
JEE Main 2022 (Online) 29th June Evening Shift Chemistry - Structure of Atom Question 77 English Option 4
4
JEE Main 2022 (Online) 29th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following statements are correct?

(A) The electronic configuration of Cr is [Ar] 3d5 4s1.

(B) The magnetic quantum number may have a negative value.

(C) In the ground state of an atom, the orbitals are filled in order of their increasing energies.

(D) The total number of nodes are given by n $$-$$ 2.

Choose the most appropriate answer from the options given below :

A
(A), (C) and (D) only
B
(A) and (B) only
C
(A) and (C) only
D
(A), (B) and (C) only
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