Easy MCQ +4 / -1 PYQ · JEE Mains 2025

For hydrogen atom, the orbital/s with lowest energy is/are :

(A) $\mathrm{4 s}$

(B) $3 \mathrm{p}_x$

(C) $3 \mathrm{~d}_{x^2-y^2}$

(D) $3 \mathrm{~d}_{z^2}$

(E) $4 \mathrm{p}_z$

Choose the correct answer from the options given below :

  1. A (A) only
  2. B (B) only
  3. C (B), (C) and (D) only Correct answer
  4. D (A) and (E) only

Solution

<p>In hydrogen atom the orbitals in a shell are degenerate means energy depends only on ' $n$ '</p> <p>$$\therefore \mathrm{E}_{3 \mathrm{p}_{\mathrm{x}}}=\mathrm{E}_{3 \mathrm{~d}_{x^2-y^2}}=\mathrm{E}_{3 \mathrm{~d}_{z^2}}$$</p>

About this question

Subject: Chemistry · Chapter: Atomic Structure · Topic: Bohr's Model

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