VSU Degree 3rd Semester Chemistry Model Question Paper

If you are a Vikrama Simhapuri University (VSU) student preparing for your upcoming semester-end examinations, you need to practice the most important questions. In this post, we are providing the complete VSU Semester 3 Chemistry Model Question Paper for Course 1: General Chemistry.

Practicing these model questions will give you a clear understanding of the exam pattern, important topics, and the weightage of marks for Section I and Section II.

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Exam Pattern Overview

Course: Course 1: General Chemistry
Time: 3 Hours
Maximum Marks: 70 Marks

Section-I: Short Answer Questions

Note: Answer any five of the following questions. Each question carries 4 marks (5 x 4 = 20 Marks).

Explain Hund’s rule and Pauli’s exclusion principle.
Write about diagonal relationship in periodic table.
Define lattice energy. What are the factors effecting lattice energy?
Explain hybridization and geometry of $BeCl_{2}$ and $BF_{3}$.
Describe LCAO method.
What are dipole-dipole interactions?
Explain Brownsted-Lowry theory with examples.
Write classification of solvents with examples.

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Section-II: Long Answer Questions

Note: Answer all the questions. Each question carries 10 marks (5 x 10 = 50 Marks). Internal choice is available.

9. Define and the periodic trends of i) Ionization potential ii) Atomic radii. (OR) What is electronegativity? How do you measure it by Pauling scale.

10. What is ionic bond? Explain with one example. What are the factors favouring formation of ionic compounds. (OR) Wrtie Born-Haber cycle.

11. What are the postulates of valence bond theory? Give the structures of $SF_{4}$ and $PCl_{5}$ by VBT. (OR) Construct the molecular orbital diagrams of $N_{2}$, $O_{2}$ and CO.

12. What are n-type and p-type semi conductors? Explain. (OR) Explain intra and inter molecular hydrogen bonding with one example each.

13. Explain the Pearson’s concept of acids and bases. (OR) Explain Arhenius theory and Lewis theories of acids and bases.

All the best for your VSU Semester 3 Examinations!

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