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PPSC · PMS Punjab 2021

Chemistry, Paper I

100 marks · 3 hours · 6 questions
This paper Chemistry · all yearsQ. 1 · Define entropy.Q. 2 · What is hybridization of orbitals?Q. 3 · What is molar conductance?Q. 4 · What is Pauli Exclusion Principle?Q. 7 · What is the composition of…Q. 8 · What are pollutants?With this paper← 20202021 →
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Not yet checked 6 of 6 questions have not yet been compared with the official paper.

Q. 1
  1. (a)Define entropy.
  2. (b)Explain the significance of Gibbs free energy as useful work.
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Q. 2
  1. (a)What is hybridization of orbitals?
  2. (b)Write down the main points of Molecular Orbital Theory (MOT) and explain the structure of HF molecule.
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Q. 3
  1. (a)What is molar conductance?
  2. (b)Define electrode potential.
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Q. 4
  1. (a)What is Pauli Exclusion Principle?
  2. (b)Derive Schrodinger wave equation for calculating the Laplacian operator.
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Q. 7
  1. (a)What is the composition of cement?
  2. (b)Define fertilizers and explain the classification of fertilizers.
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Q. 8
  1. (a)What are pollutants?
  2. (b)Write a note of any one:
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About this paper

The 2021 PMS Punjab Chemistry paper set by the PPSC. Question wording only; questions marked “Not yet checked” have not been compared with the official paper yet.

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