BALOCHISTAN PUBLIC SERVICE COMMISSION
Samungli Road, Quetta Cantt.
COMPETITIVE EXAMINATION FOR THE POST(s) OF BCS (EB) OFFICER B-17 / SECTION OFFICER B-17
APPLIED CHEMISTRY
Total Marks: 150
Monday, February 16, 2009
Time Allowed: 03 Hours
Note: Attempt any Five questions. All questions carry equal marks.
Q-1. Describe the neutral sulphite semi-chemical process for the manufacture of pulp and paper.
Q-2. Explain the chemical composition of oils and fats. How can oils be hardened? Also explain the uses of oils and fats.
Q-3. Differentiate between soap and detergent. How can soap be prepared by different processes?
Q-4. What are chemical additives to food? Explain their good and bad effects on one’s health.
Q-5. Give chemical composition of the products obtained by the destructive distillation of coal. How can coal be converted into liquid hydrocarbons?
Q-6. What are ceramics? Discuss the applications of ceramics.
Q-7. Define and classify fertilizers. What are the essential qualities of a good fertilizer?
Q-8. What is paint? What are the principal constituents of paint? Differentiate between oil paint and water paint.
Good Luck
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