Home/
Competitive Exams/
NEET/
Chemistry/
Structure of Atom/
Question 21118
NEET Chemistry · Hard

Structure of Atom: Energy ordering MCQ

Solve this quality-checked NEET multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
Energy orderingHardQuestion 21118

Question

Among 4s and 3d orbitals during filling, the lower energy is usually:

  1. A
    4s
    Correct
  2. B
    3d
  3. C
    Both identical
  4. D
    Depends only on spin

Correct answer

4s

Explanation

n+l rule places 4s below 3d during filling.

Review Structure of Atom notesStart timed chapter practice