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ECAT Practice Chemistry Atomic Structure MCQs Test 5
ECAT Quiz
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ECAT Practice Chemistry Atomic Structure MCQs Test 5

Practice ECAT 2026 Practice Test Chemistry MCQs from Atomic Structure. Get instant results with Explanation.
Practice Quiz 5 for "Atomic Structure" (Chemistry). Total 65 MCQs available, split into 7 quizzes. Test your understanding of core concepts. This area is highly tested in ECAT.
General10 MCQs
1. The number of unpaired electrons in nitrogen atom is:
2. The element with atomic number 29 is copper. Its electron configuration is (excluding exceptions):
3. The element with atomic number 24 is chromium. Its electron configuration is:
4. The spectral lines in the hydrogen atom arise due to transitions between:
5. The Lyman series of hydrogen lies in the:
General10 MCQs
6. The Balmer series of hydrogen lies in the:
7. The Paschen series of hydrogen lies in the:
8. The Rydberg constant is approximately:
9. The dual nature of electrons was proposed by:
10. The wave-particle duality of electrons was experimentally confirmed by:

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Conducting Body: UET
Frequency: Quarterly | Time: 100 Minutes
Negative Marking: No

⚡ Test Pattern (Total: 100 MCQs):

Merit Formula: Typically, the aggregate is calculated as: (ECAT × 33.33%) + (FSc Part-I × 16.67%) + (Matric × 50%). However, the respective university may revise its merit calculation formula or admission criteria from time to time. Please confirm the official criteria before applying.

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