B.Sc. (Biotechnology) Sem II 2022 2023 Apr 2023 BASIC CHEMISTRY II Question Paper - Mumbai University | munotes

Questions asked in this paper

• 1. Attempt all questions

1. Q3 Use of log tables and non-programmable calculator is allowed
2. Q4 For Q2, Q3 and Q4 attempt sub-questions (A and B) OR (C and D). directed (Any fifteen) 15
   • l. What is ‘internal energy’?
3. Q2 True or False. AG is positive for a spontaneous reaction 3 Explain the term : Path function 4, Give an example of an ‘intensive property’
4. Q5 Explain the term : Isochorie process
5. Q6 The unit for specific heat capacity is
6. Q7 For a zero order reaction, the rate of reaction is independent of
7. Q8 What is a first-order reaction? For a second-order reaction, what is the unit of the rate of the reaction?
8. Q10 What is rate law? What is the molecularity of elementary reactions?
9. Q12 What is the unit of the rate of the reaction?
10. Q13 When the rate of the reaction is equal to the rate constant, the order of the reaction is order of reaction
11. Q14 What is meant by Substitution reaction? What is the oxidation number of S in $2037 ?
12. Q16 What is meant by oxidation reaction? The oxidation number of Cr in is Give one example of Addition reaction
13. Q19 True or False. When an element becomes reduced its oxidation number goes
14. Q20 the following unbalanced reaction : CO2 + + O2
15. Q2 A_ Derive the mathematical expression for mechanical work. 8 marks
16. Q2 B_ Explain First law of thermodynamics for various processes. 7 marks
    • a) Explain the change in enthalpy of a system is equal to heat 04 transferred from it at the constant pressure
    • b) What is System? Explain the Properties of the system. 04 Calculate the constant external pressure required to compress 2 moles of 07 an ideal gas from volume of 25 dm? to 13 dm? when the work obtained is What is the overall order of reactions? Explain about First and second 08 order of reactions using suitable examples
17. Q3 B Write a difference between order and molecularity. 7 marks
18. Q3 C Write a note on rate law using suitable examples. 8 marks
19. Q3 D_ Find out the average rate of reaction for the given reactions between 400s 7 marks
20. Q4 A a) Explain substitution reactions with suitable examples. 4 marks
    • b) Identify the substance oxidised, reduced, oxidising agent and 04 reducing agent of following reactions: Balance following reaction by oxidation number method : 07 Balance following reaction by Ion Electron method : 08
21. Q4 D What is an Oxidation and Reduction reaction? Give two examples ofeach
22. Q5 Short notes on he following 15 marks
    • a. Exothermic
    • b. of
    • e. reacti es

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