BSc Biotechnology Sem I 2019 20 Nov 2019-20 BIOTECH BASIC CHEMISTRY II Question Paper - Mumbai University | munotes

Questions asked in this paper

• Attempt all questions

1. Q2 All questions carry equal marks
2. Q4 Use of log tables and non-programmable calculator is allowed 5S. For Q 2, Q3 and Q 4 attempt A and B OR C and D Do as directed (Any fifteen) 15 3; Define asymmetric carbon atom
3. Q4 The compound which have same molecular formula and same structure, but differ in arrangement of atoms in space with respect to a double bond are known as The various temporary molecular shapes which result from the rotation of groups about a single bond are called of a molecule
4. Q6 State true or false. In Newmann projection formula, the front carbon atom is represented by a point from which three bond radiate 7, State true or false. In Fischer projection formula, a broken wedge indicates the bond below the plane of the paper
   • S. Define the term : Titration
5. Q9 What is a TD pipette?
6. Q10 Define : Primary standard
7. Q11 What is ‘equivalence point’ in titration?
8. Q12 Explain the term : Ostwald ripening
9. Q13 List any two materials used for filtration in gravimetry
10. Q14 Explain the term : Peptization
11. Q15 Define Partition Coefficient
12. Q16 Device used for sample application in Paper chromatography
13. Q17 Process used to separate insoluble particles from liquid is
14. Q18 cuvette is used for UV spectroscopy
15. Q19 True or False. Tungsten lamp is used as source in colorimetry
16. Q20 True or False. Chromatography cannot be used to purify volatile
17. Q2 A_ Explain structural isomerism and its types with suitable examples. 8 marks
18. Q2 B Comment on representation of configuration by Sawhorse projection Describe Erythro, Threo and Meso isomers. 08 7 marks
19. Q2 D Comment on conformations of Ethane and conformational isomerism with 7 marks
20. Q3 A the requirements for a chemical reaction for use in titrimetry. 8 marks
21. Q3 B an account of precipitation process in gravimetric analysis. Explain the ‘ion effect’ on solubility of precipitates in gravimetry. 08 7 marks
22. Q3 D Give an account of classification of indicators. Explain Thin Layer Chromatography. 08 7 marks
23. Q4 B What is Precipitation? Explain it in detail. What is Chromatography? Discuss Column Chromatography. 08 7 marks
24. Q4 D_ Explain the principle and instrumentation of Colorimeter. ‘07
25. Q5 Short notes on any three of the following 15 marks
    • a. Racemic mixture
    • b. Enantiomers
    • d. Mechanism of precipitate formation in gravimetry Types of Paper chromatography

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