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Old Friday, January 11, 2013
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Default Chemistry Papers KPK 2010




KHYBER PUKHTOON KHWA PUBLIC SERVICE COMMISSION,PESHAWAR

SUBJECT:- COMPETITIVE EXAMINATION FOR THE POST OF PROVINCIAL MANAGEMENT SERVICE (BPS-17)


Chemistry Paper-I



Time allowed: 3 hours
Max marks:100

Note:Attempt any Five Questions.



Q.1 A) Describe the concept of Quantum Theory of Radiation. What properties of radiation does it explain?

B) What is th difference between structures of H-atom, H-molecules and H-Molecule ion?

Q.2 A) State the 2nd Law of Thermodynamics. How is it related to Entropy? Explain with the help of equations.

B) Explain the terms : i) Intensive properties, ii) Extensive properties, iii) State


Q.3 A) What is Electrolysis? Describe Faraday's Law Electrolysis and explain with examples. Also give significance of these laws.

B) How measurement of pH is made?


Q.4 A) What is the group No. and atom No. of Nitrogen? What is its importance in air?

B) Name typical Oxt-acids of Nitrogen. Describe the preparation , Structure , and important chemical reactions of Nitric Acid.


Q.5 A) Name important ores of aluminum. Describe methods of preparation and purification of Aluminum.

B) What is Semi-Conductivity device? Discuss basic design of n-type and p-type semi conductivity devices.


Q.6 How to structures of Coordination Compounds are explained on the basis of molecular orbital theory? Explain with respect to [Co(NH2)6]3+ and [Co(F)6]3- which one is paramagnetic?


Q.7 A) What are water borne diseases? What remedial measures should be taken to minimize the risk of these diseases?

B) Describe types of water hardness. Give names of compounds that are responsible for these types.
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Old Friday, January 11, 2013
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KHYBER PUKHTOON KHWA PUBLIC SERVICE COMMISSION,PESHAWAR
SUBJECT:- COMPETITIVE EXAMINATION FOR THE POST OF PROVINCIAL MANAGEMENT SERVICE (BPS-17)


Chemistry Paper-II



Time allowed: 3 hours
Max marks:100

Note:Attempt any Five Questions.


Q.1 A) Define the terms Sigma and pi bonds. What types of atomic orbitals give Sigma and pi bonds? Illustrate with the help of diagrams.

B) Predict and draw the shapes of NH3,H2O,C2H4, and C2H2 using hybridization.


Q.2 A) What is 1st order reaction? Explain with help of equation and describe its characteristics giving one example.

B) Explain the terms: i) Order or Reaction, ii) Molecularity of Reaction, iii) Rate Law.


Q.3 A) Describe with examples the main types of Catalysis.

B) What is hydrogen bond? Discuss its effects on the properties organic compounds.


Q.4 A) What is Grignard Reagent? Discuss with examples reactions of this Reagents.

B) Name typical reactions of carbonyl compounds. Describe following Nucleophilic addition reactions : i) Base Catalyzed, ii) Acid Catalyzed, iii) Ammonia and its derivatives.


Q.5 A) Describe the following Electrophilic Substitution Reactions: i) Friedel-Crafts Reaction, ii) Formylation, iii) Carboxylation.

B) What is Aromaticity? Describe the criteria and evidence for Aromaticity.

Q.6 What is Diazotization? How many Diazonium salts are prepared? Describe with examples the Replacement reactions of Diazonium salts

Q.7 A) What is the role of vitamins in the body? Write a note on Vit-B.

B) Describe with examples the classes of polymers. Write comprehensive notes on Polyesters, Polyamidas, and Polyurethanes.
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