JEE Main 2019ChemistryStructure Of AtomQuantum Mechanical Model Of AtommediumMCQ
JEE Main 2019 — Structure Of Atom Question with Solution
From: JEE Main 2019 (Online) 10th April Morning Slot
Question
The graph between ∣ψ∣2 and r (radial distance) is shown below. This represents :
This question includes a diagram. The text above accompanies the figure.
Choose an option
▸Show full solutionCorrect option: B
Correct answer
B2s orbital
Step-by-step explanation
In this ∣ψ∣2 vs r graph, value of r is zero at only one point. So this orbital must have one radial node.
Here ∣ψ∣2=0 at r = 0, so orbital should be s orbital. Then l = 0.
We know,
No of radial node = n - l - 1
∴ n - l - 1 = 1
⇒ n - 0 - 1 = 1
⇒ n = 2
Therefore orbital is 2s.
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