Chemistry-Thomson's Model

NEET Chemistry Thomson's Model Assertion Reason Question

Type: Assertion Reason-assertion-Hard-Class 11

Assertion (A): In a hydrogen atom, the 2s and 2p orbitals are degenerate. | Reason (R): The energy of an electron in a hydrogen atom depends only on its principal quantum number.

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.

Correct Answer

Option A

Detailed Explanation

In a hydrogen atom, the 2s and 2p orbitals have the same energy (are degenerate) because the energy depends only on the principal quantum number, not the orbital shape.

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