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ECAT Practice Chemistry Atomic Structure MCQs Test 4
ECAT Quiz
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ECAT Practice Chemistry Atomic Structure MCQs Test 4

Practice ECAT 2026 Practice Test Chemistry MCQs from Atomic Structure. Get instant results with Explanation.
Practice Quiz 4 for "Atomic Structure" (Chemistry). Total 65 MCQs available, split into 7 quizzes. Start with the fundamentals and build a strong base. This area is highly tested in ECAT.
General10 MCQs
1. The shape of an s orbital is:
2. The shape of a p orbital is:
3. The spin quantum number of an electron can have values:
4. The Pauli exclusion principle states that no two electrons in an atom can have the same set of:
5. Hund's rule states that electrons fill orbitals of same energy such that:
General10 MCQs
6. The aufbau principle states that electrons fill orbitals in order of:
7. The electron configuration of oxygen (Z=8) is:
8. The electron configuration of nitrogen (Z=7) is:
9. The atomic number of an element is 17. Its electron configuration is:
10. The number of unpaired electrons in oxygen atom is:

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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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