1
JEE Main 2026 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

$$ \text { Match the LIST-I with LIST-II } $$

List-I
Orbital
List-II
Radial nodes and nodal plane
A. 2s I. 1 Radial node + two nodal planes
B. 3s II. 1 Radial node + one nodal plane
C. 3p III. 2 Radial nodes + No nodal plane
D. 4d IV. 1 Radial node + No nodal plane
Choose the correct answer from the options given below:
A

A-IV, B-I, C-III, D-II

B

A-IV, B-II, C-III, D-I

C

A-III, B-I, C-IV, D-II

D

A-IV, B-III, C-II, D-I

2
JEE Main 2026 (Online) 5th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following statement(s) is/are true ?

A. If two orbitals have the same value of ( $\mathrm{n}+l$ ), the orbital with lower value of n will have lower energy.

B. Energies of the orbitals in the same subshell increase with increase in atomic number.

C. The size of $2 \mathrm{p}_x$ orbital is less than the size of $3 \mathrm{p}_x$ orbital.

D. Among 5f, 6s, 4d, 5p and 5d orbitals, none of the orbitals have 2 radial nodes.

Choose the correct answer from the options given below :

A

A, B and C only

B

A and C only

C

C and D only

D

A only

3
JEE Main 2026 (Online) 5th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Arrange the following atomic orbitals of multi electron atoms in order of increasing energy.

A. $n=3, l=2, m=+1$

B. $n=4, l=0, m=0$

C. $n=6, l=1, m=0$

D. $n=5, l=1, m=+1$

E. $n=2, l=1, m=+1$

Choose the correct answer from the options given below:

A

$\mathrm{C}<\mathrm{D}<\mathrm{B}<\mathrm{A}<\mathrm{E}$

B

$\mathrm{B}<\mathrm{A}<\mathrm{E}<\mathrm{C}<\mathrm{D}$

C

$\mathrm{E}<\mathrm{C}<\mathrm{D}<\mathrm{B}<\mathrm{A}$

D

$$ \mathrm{E}<\mathrm{B}<\mathrm{A}<\mathrm{D}<\mathrm{C} $$

4
JEE Main 2026 (Online) 5th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Identify the correct statements from the following :

A. Heisenberg uncertainty principle is applicable to electrons.

B. The size of $2 p_x$ orbital is less than the size of $3 p_x$ orbital.

C. The energy of 2 s orbital of H atom is equal to the energy of 2 s orbital of Li .

D. The electronic configuration of Cr is $[\mathrm{Ar}] 3 \mathrm{~d}^5 4 \mathrm{~s}^1$

Choose the correct answer from the options given below:

A

A, B and C Only

B

A, B and D Only

C

B, C and D Only

D

A, C and D Only

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