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Chemistry · Structure of atom

हिन्दी

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).\n Assertion (A): The energy of the orbitals in a hydrogen atom depends solely on the principal quantum number \( n \).\n Reason (R): In a hydrogen atom, the 2s and 2p orbitals have exactly the same energy. \nIn the light of the above statements, choose the correct answer from the options given below:

  1. Both (A) and (R) are true and (R) is the correct explanation of (A).
  2. Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
  3. (A) is true but (R) is false.
  4. (A) is false but (R) is true.

Correct answer · Option 1

Both (A) and (R) are true and (R) is the correct explanation of (A).

Explanation

In hydrogen atom, energy depends only on \( n \), which means orbitals with the same \( n \) (like 2s and 2p) are degenerate.
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