TYBSc Chemistry Physical Chemistry Sem 5 Question Paper 2026 - Mumbai University | munotes

Questions asked in this paper

1. Q1 All questions are compulsory
2. Q2 Figures to the right indicate full marks
3. Q3 Use of log tables /non-programmable calculator is allowed
4. Q1 Attempt any three of the following:
   • (A) Define dipole moment. How are cis and trans isomers identified on the basis of 5
   • (B) What is zero point energy? The vibrational frequency of a molecule is 3x 5
   • (C) Explain the IR spectra of water molecule. 5
   • (D) Explain P and R branch lines in rotational — vibrational spectra. 5
   • (E) What is Raman effect and Raman shift? Explain Stokes and anti-Stokes lines. 5
   • (F) Derive an expression for frequency separation of lines in rotational 5 spectrum of a diatomic molecule
5. Q2 Attempt any three of the following:
   • (A) Explain the different types of ion specific electrodes. 5
   • (B) Derive an expression for emf of a concentration cell with transference 5 reversible to cation
   • (C) Calculate the coefficient of KCl in a solution containing 5
   • (D) Derive Nernst equation for a galvanic cell. 5
   • (E) Derive an expression for emf of a concentration cell without transference 5 reversible to anion
   • (F) The emf of the cell is 0.02 volt at 298K. Calculate and tin the given range of concentration
6. Q3 Attempt any three of the following:
   • (A) Explain the application of phase rule to water system. 5
   • (B) Explain the phase diagram of lead-silver system. 5
   • (C) Explain the term reverse osmosis. 5
   • (D) State the phase rule and explain the terms. 5
   • (E) Derive the equation ATp = Kp .m 5
7. Q4 Attempt any three of the following:
   • (A) Explain Donnan Membrane equilibrium. 5
   • (B) State BET equation and explain the terms involved. 5
   • (C) Describe the characteristic features of catalysis. 5
   • (D) Explains electrophoresis in details. 5
   • (E) Write a note on origin of charge on colloids. 5
   • (F) Explain Langmuir's adsorption isotherm and derive the equation. 5 State true or false 4
   • (a)Unit of dipole moment is Debye
   • (b) Water has non-linear structure
   • (c) COz has 4 degrees of freedom
   • (d)Finger print region is 400-700
   • (A)Match the following 4 5.(B) State true or false 4
   • (a) Oxidation 1s gain of electrons
   • (b) Amalgam electrode does not contain mercury
   • (B) Match the following 4 5.(C) State true or false 4
   • (a) Reverse osmosis is used to concentrate fruit juices
   • (b) is molal depression constant
   • (c) Condensed phase rule is F = C-P+1
   • (d) Pb-Ag system is three component system
   • (C) Match the following 4
   • (q) Kp Lowering of vapour pressure State true or false 3
   • (a)Surfactants are used in food industry
   • (b) Charge on colloidal particles depend on medium
   • (c) Catalyst are selective
   • (D) Match the following 3

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