JEE Main 2026 Apr 6 Shift 1, Chemistry Q3: Quantum Numbers

JEE Main2026Apr 6, Shift 1Chemistry

Match the List-I with List-II:

List-I (Orbital)		List-II (Radial nodes and nodal plane)
A.	$2 s$	I.	$1$ Radial node + two nodal planes
B.	$3 s$	II.	$1$ Radial node + one nodal plane
C.	$3 p$	III.	$2$ Radial nodes + No nodal plane
D.	$4 d$	IV.	$1$ Radial node + No nodal plane.

Choose the correct answer from the options given below:

Solution

Use the standard rules: radial nodes $= n - ℓ - 1$ and angular nodes (nodal planes) $= ℓ$ .

$2 s$ ( $n = 2, ℓ = 0$ ): $1$ radial node, $0$ nodal planes $\to$ IV.

$3 s$ ( $n = 3, ℓ = 0$ ): $2$ radial nodes, $0$ nodal planes $\to$ III.

$3 p$ ( $n = 3, ℓ = 1$ ): $1$ radial node, $1$ nodal plane $\to$ II.

$4 d$ ( $n = 4, ℓ = 2$ ): $1$ radial node, $2$ nodal planes $\to$ I.

$∴$ A-IV, B-III, C-II, D-I.

Concept behind this question

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