For hydrogen atom, the orbital/s with lowest energy is/are : (A) … - Vidyadip

MCQ

For hydrogen atom, the orbital/s with lowest energy is/are :
(A) 4 s
(B) $3 p_x$
(C) $3 d_{x^2-y^2}$
(D) $3 d_{z^2}$
(E) $4 p _2$
Choose the correct answer from the options given below :

A
(A) and (E) only
B
(B) only
C
(A) only
✓
(B), (C) and (D) only

✓

Answer

Correct option: D.

(B), (C) and (D) only

(D) (B), (C) and (D) only
Sol. In hydrogen atom the orbitals in a shell are degenerate means energy depends only on ' $n$ '
$\therefore E_{3 p,}=E_{3 d_{s^2, y^2}}=E_{3 d_{\gamma_2}}$

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