CSS NEXUS
All SPSC past papers

SPSC 2014B.Sc Forestry Course EntranceQuestion Paper

SPSC 2014 B.Sc Forestry Course 2014-16 Selection Exam — Chemistry Paper

The official SPSC CCE 2014 B.Sc Forestry Course 2014-16 Selection Exam — Chemistry question paper (b.sc forestry course entrance), set by the Sindh Public Service Commission. All the questions are typed out below.

  • #SPSC 2014
  • #SPSC B.Sc Forestry Course 2014-16 Selection Exam — Chemistry past papers
  • #SPSC 2014 B.Sc Forestry Course 2014-16 Selection Exam — Chemistry paper
  • #B.Sc Forestry Course 2014-16 Selection Exam — Chemistry
  • #SPSC B.Sc Forestry Course Entrance
  • #SPSC
  • #SPSC B.Sc Forestry Entry Test past paper
  • #SPSC B.Sc Forestry Entry Test 2014
  • #B.Sc Forestry Entry Test past papers
  • #B.Sc Forestry Entry Test test preparation
  • #SPSC Chemistry
  • #B.Sc Forestry Entry Test Chemistry paper
  • #Chemistry past paper
  • #SPSC B.Sc Forestry Entry Test written test
  • #SPSC written test questions
  • #Pakistan Forest Institute Peshawar entry test
  • #SPSC 2014 past papers
  • #SPSC B.Sc Forestry Course Entrance past papers
  • #SPSC past papers
  • #Sindh Public Service Commission past papers
  • #SPSC test preparation
  • #CSS Nexus

SPSC 2014 B.Sc Forestry Course 2014-16 Selection Exam — Chemistry paper — full text

Every question from the paper, as set in the exam.

B.Sc Forestry Course 2014-16 Selection Exam — Chemistry. Friday 15 August 2014, 10:00 am to 01:00 pm · Maximum marks 200. Attempt any 06 questions by selecting any 02 from each Section. All questions carry equal marks.

  1. 1Section I — How is ammonia produced by the Haber Bosch process? The hydrogen gas is an important component for the production of ammonia. Describe the synthetic procedure for H2 gas. Also describe the environmental aspects of use of ammonia.

  2. 2Section I — (a) What is a solar cell? Describe the function of silicon in solar cell. (b) Discuss the general group trends of IV-A group; compare the behavior of carbon and silicon.

  3. 3Section I — What are Fertilizers? Why are they needed? Discuss the classification of fertilizers and their uses.

  4. 4Section II — Discuss the Critical state of gases and explain relevant terms: critical temperature, critical pressure and critical volume. Work out the mathematical relation between Van der Waals constants and critical constants.

  5. 5Section II — (a) What is optical activity? How is it measured accurately? What is the importance of such measurements in Chemistry? (b) Benzene has surface tension 28.9 dynes/cm at 20°C; its density at this temperature is 0.87901 g cm⁻³ and molecular weight 78.11. Calculate its parachor value.

  6. 6Section II — Define and explain the following: (i) Plane of symmetry (ii) Centre of symmetry (iii) Space lattice and unit cell (iv) The law of constancy of interfacial angles

  7. 7Section III — Define Alcohols. How are they prepared from (i) Alkenes (ii) Alkyl halides (iii) Grignard's reagents?

  8. 8Section III — (a) What are Aldehydes and ketones? How are they formed? Give their properties. (b) What do you understand by reaction mechanism? Describe the important types of chemical reaction.

  9. 9Section III — (a) Explain why benzene undergoes electrophilic substitution reaction whereas alkenes undergo addition reactions. (b) Discuss the synthetic applications of benzenediazonium chloride.