BSc Sem III 2023 2024 2024 CHEMISTRY I Question Paper - Mumbai University | munotes

Questions asked in this paper

• ii) Figures to the right indicate full marks

1. Q1 Answer the following:
   • A. Multiple choice questions (Attempt any 9) 1, Maximum work done by the system can be obtained at the expense of 9
2. Q2 is for the system at equilibrium
   • a. AG<0 c. d. AS=0 is a measure of escaping tendency for real gases
3. Q4 Maximum work done by the system can be obtained at the expense of 5, are called non-ditectional bonds 6.The p-orbital is in the shape of a
4. Q7 Which one of the following is not a strong bond? 8 A type of enthalpy cycle which is used to calculate lattice energy ?
5. Q9 An organometallic bond is defined as the bond between
   • a.metal and nonmetal b.Carbon and metal c.Carbon and nonmetal d. Carbon and metalloid
6. Q10 Cumene on air oxidation gives ‘
7. Q11 Resorcinol is a type of phenol 12.Acidic nature of phenol is due to
   • B. Match the following. [3}
   • C. Write true or false. 3
8. Q1 If AG is Positive the reaction is non spontaneous
9. Q2 Molecular orbitals are polycentric
10. Q3 are also called oxiranes sho\2 CHEMISTRY Marks
11. Q2 Answer the following (Attempt any four): 20 marks
12. Q1 Show that Decrease in Helmholtz free energy of constant temperature gives maximum work
13. Q2 State and explain kohlrausch’s law of independent migration of ion
14. Q4 Discuss the factors that influence or affect transport numbers,
15. Q5 Describe the moving boundary method to determine the transport number of ion
16. Q6 Derive the Expression for Gibb’s free energy gives net work
17. Q3 Answer the following. Attempt any four: 20 marks
18. Q1 Explain with the help of the MOT the magnetic nature of N, molecule
19. Q2 What is hybridization? Explain the role of hybridization by giving suitable examples
20. Q3 Give applications of Born Haber Cycle
21. Q4 Discuss the conditions for the formation of ionic bonds
22. Q5 Describe the structure of Zinc blende. How does it differ from wurtzite structure?
23. Q6 Calculate the lattice energy of NaCl crystal from the following data by the use of Born Haber Heat of atomization of sodium = 108.7 KJ mol! Heat of atomization of chlorine = 120. KJ Electron affinity of chlorine (Cl) = KJ mol"!
24. Q4 Answer the following Attempt any fcur: between SN' reaction 2.Explain fries with suitable example 3.Explain elimination - addition mechanism 4.Give the ring opening reactions of epoxide by : a) Hydrolysis in acidic condition 20 marks
    • b) Reaction with HX c)Reaction with ROH 3) Reaction with RMgxX e)Reaction with HCN 5.Explain any two preparation of phenol 6.Write down IUPAC /nomenclature of the following

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