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

Questions asked in this paper

1. Q1 All the questions are compulsory
2. Q2 All questions carry equal marks
3. Q1 A. Multiple choice questions (Attempt any nine) 9 marks
4. Q1 Concentration of any gasexpressedin
5. Q2 As the temperature of a reaction is the rateofthe reaction The hydrolysis of Methyl acetate is an example of
6. Q4 For second order reaction half-time is to the initial concentration
   • a) directly proportional b) not proportional
   • c) inversely proportional d) depends on condition
7. Q5 Surface tension of a liquid with increase in temperature
   • b) decrease c)remainssame d) no regular pattern in followed
8. Q6 Following pair does not show diagonal relationship
   • a) Li-Mg b)
9. Q7 Anomalous behaviour of second period elements arises because of _ 2 marks
   • a) They have big size b) Availability of the d-orbitals
   • c) High polarising power of cations d) High polarisability of anions
10. Q8 Diamond has structure
11. Q9 concentration of can lead to ___ in the earth’s temperature
12. Q10 A solid wedge ora heavy line represents a bond projecting plane of the
    • a)above b) below c) on the right d) on the left
13. Q11 Tartaric acids have stereoisomers
14. Q12 In the Fischer Projection formula, the more oxidized group is placed at the of the vertical line
15. Q13 The number of stereoisomeric forms is the
    • B. Match the pairs. 03
    • a) Sodium Hydroxide a) Used in LCDs
    • c) Enantiomers are stereoisomers c) Caustic soda
    • C. Write true or false. 03
    • a) The resistance to flow is called viscosity
    • b) The energy trapping phenomenon by infrared active molecules or gases in the atmosphere is Known as greenhouse effect indicates Dextro-rotatory and ‘D’ indicates VCD/ F.Y.B.Sc. SEMI CHEMISTRY-II 2.5 HRS 75 marks
16. Q2 Attempt any four: 20 marks
    • A. A first order reaction is 25% complete in 30 minutes. Calculate the (1) specific reaction
    • B. Write the difference between order and molecularity of reaction?
    • C. Drive the integrated rate equation for a reaction of second order?
    • D. the methods of determining order of reaction? Explain any two methods of determining order of reaction?
    • E. Write short notes on: - (i) surface tension (ii) viscosity (iii) refractive index (iv) molar
    • F. What is liquid crystal? Write down the classification of liquid crystal and application of
17. Q3 Attempt any four: 20 marks
    • A. Write a note on electronegativity of main group elements and explain any three factors
    • B. Explain diagonal relationship in detail between Lithium and Magnesium
    • C. Write a note on anomalous behaviour of Nitrogen
    • D. Give a method of preparation; write down any two properties and any two uses of Explain the greenhouse effect with sources of emission of COg
    • F. Write a note on photochemical smog
18. Q4 Attempt any four: 20 marks
    • A. What is meant by the Projection formula? Explain Fischer Projection formula
    • B. Write a short note on Newman Projection formula
    • C. Draw Fischer Projection formula and Newman Projection formula of Erythro and Threo What do you mean by Geometrical isomerism and Optical isomerism? Explain the terms with one example for each Write the difference between Enantiomers and Diastereomers
    • F. Define the following:- (i) Chirality (ii) Resolution of Racemic mixture (iii) Racemic

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