BSc Chemistry SEM I 2022 2023 Nov 2023 CHEMISTRY I Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q1 All questions are compulsory
2. Q2 All questions carry equal marks
3. Q1 A. Select the correct option. (Any 9 ) (Marks : 9) 1.State functions are 2.Which of the following is extensive property
4. Q3 of 4M moles of HNO3 4.Number of moles corresponding to 90g of
5. Q5 3s orbital has :
6. Q6 In ground state of atom ,the electron occupies the orbital
7. Q7 The verticals column in periodic table are called
8. Q8 The horizontal rows of long periodic table are called
9. Q10 Sigma bond is than pi bond 11.Propane has carbon atom 12.Bond angle in Methane molecule is 13.The shape of p orbital is shape
   • B. State or false . ( Marks ; 3) 1.The equivalent weight of oxidizing agent does not depends on the other reactant present in 2.There are thirty two elements in fifth period 3.Pi bond is weaker than sigma bond TIME: 2 HRS 30 MIN MARKS :75
   • C. Match the following columns (Marks:3)
10. Q3 3. Extensive property
11. Q2 Attempt any four of the following questions ( Any 4 ) (Marks: 20) State and derived mathematical expression for First law of thermodynamics
12. Q2 Define the following terms a) open system b) Isothermal process
13. Q3 State limitations of First law of thermodynamics 4 .Determine the molarity of the following which contain a) 4.9g of in SL solution
    • b) 16.0g of CH3OH in 200 cm’ of solution
14. Q5 Calculate the weight of the following substances that will be required to prepare 250 ml of
    • o. the concept of heat and work in thermodynamics along with its si gn conventions
15. Q3 Attempt any four of the following questions (Any 4) (Marks :20)
16. Q1 Explain Rutherford’s model of an atom based on alpha particles scattering experiment
17. Q2 Discuss the basis of Bohr’s atomic model and limitations of Bohr’s atomic model
18. Q3 Explain atomic spectrum of hydrogen atom
19. Q4 What is meant by Effective nuclear charge? Calculate the effective nuclear charge felt by 4s electron of Potassium
20. Q5 State modern periodic law. What are the types of elements in the long form of periodic
21. Q6 What is meant by electron gain enthalpy? State the factors influencing electron gain
22. Q4 Attempt any four of the following questions (Any 4 ) ( Marks : 20) : Write the structural formula for each of the following compounds
    • d) Cyclopentane Ethanoate
23. Q2 Explain the hybridisation of Carbon. Explain formation of Methane molecule
24. Q3 What is resonance? What are the requirement for a molecule to exhibit resonance
25. Q4 Distinguish between sigma bond and pi bond
26. Q5 Explain the following. a) Alcohols are almost neutral compound
    • b) Monochloroacetic acid is stronger than acetic acid
27. Q6 Explain sp hybridisation of Carbon

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