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FPSC · CSS 2024

Chemistry, Paper I

100 marks · 3 hours · 7 questions · official PDF, 2 pages
Practice 20 MCQs
This paper Chemistry · all yearsQ. 2 · What is the de Broglie…Q. 3 · Explain in detail the Nernst…Q. 4 · Discuss in detail the Hess's…Q. 5 · Derive the equation for rate…Q. 6 · Explain the kinetics of the…Q. 7 · Discuss in detail the soft…Q. 8 · Discuss the nomenclature and structure…With this paperPart-I MCQs20Official PDF2 pp← 20232024 →
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Part II

Q. 2
  1. (a)What is the de Broglie hypothesis and how was this proved experimentally? [10]
  2. (b)How do you compare the Gibb's and Helmholtz free energies? [5]
  3. (c)Explain occurrence and oxidation states of Lanthanides. [5]
(20)
Q. 3
  1. (a)Explain in detail the Nernst equation. [10]
  2. (b)Justify that half life period of third order reaction is inversely proportional to square of the initial concentration of reactants. [5]
  3. (c)What are Eigen function and Eigen values? Explain with examples. [5]
(20)
Q. 4
  1. (a)Discuss in detail the Hess's law with the help of suitable examples. [10]
  2. (b)Discuss the Hamiltonian operator in detail. [5]
  3. (c)Explain the phase diagram by applying the Gibb's phase rule for a two component system with the help of a suitable example. [5]
(20)
Q. 5
  1. (a)Derive the equation for rate constant of a third order reaction with same initial concentrations. Give its half life and examples as well. [10]
  2. (b)What is solvent extraction? Discuss its theory and uses for the extraction of metals. [5]
  3. (c)What is theory of buffer solutions? Explain. [5]
(20)
Q. 6
  1. (a)Explain the kinetics of the enzymes catalysis. [10]
  2. (b)Give postulates of Werner's theory of co-ordination compounds. How does it justify the formulae of CoCl3·6NH3, CoCl3·5NH3, CoCl3·4NH3, and CoCl3·3NH3? [5]
  3. (c)How the electrochemical series will help us, that whether a particular metal will react with an acid or not? [5]
(20)
Q. 7
  1. (a)Discuss in detail the soft and hard acid and base (SHAB) concept with suitable examples. [10]
  2. (b)Derive relationship between equilibrium constant and Gibb's free energy. [5]
  3. (c)What are different statistical tests in chemical analysis? Explain. [5]
(20)
Q. 8
  1. (a)Discuss the nomenclature and structure of coordination complexes with coordination number 2-10. [10]
  2. (b)How do you calculate the degree of dissociation (a) of a weak electrolyte by Kohlrausch law? [5]
  3. (c)The hydrolysis of CH3COOH with NaOH is a second order reaction. How do you follow the progress of this reaction in the laboratory? [5]
(20)

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About this paper

The 2024 CSS Chemistry paper set by the Federal Public Service Commission. Question wording only; questions marked “Not yet checked” have not been compared with the official paper yet. Open the official paper beside the questions to check any of them.

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