BSc Sem VI 2014 2015 2015 Chemistry 2 Question Paper - Mumbai University | munotes

Questions asked in this paper

• (2) Figures to the right indicate full marks

1. Q1 Answer any THREE of the following:
   • (a) An organic compound has molecular formula . Determine index 5 of hydrogen deficiency and deduce its structural formula using the following Also write the name of the compound
   • (b) An organic compound has molecular Determine its 5 index of hydrogen deficiency and deduce formula using the Also write the name of the compound
   • (c) Define 'Bathochromic shift’, Explain how chromophore - chromophore and auxochrome - chromophore interactions bring about bathochromic shift in
   • u.v. spectra of organic compounds with suitable example
   • (i) Show the fragmentation pattern of butane. 3
   • (ii) Explain with a suitable example how IR spectroscopy in studying the course of a reaction
   • (e) (i) With-the help of a neat diagram, explain anisotropic deshielding of 3 proton of - CHO group. ‘ are isotopic peaks? Why are they produced in
   • (f) Predict the number of PMR Signals and splitting pattern of the
   • (ii) What is meant by What is its of Jablonski diagram, Write the tructure and uses of () the reactions for preparation of following from their }
   • (1) Stabilizers
   • (2) Fillers
   • (e) (i ) is meant by tacticity? Explain j types of 3 ve uses of the Olymers, (Any two) tion? Explain and trans Polymerisation of } the analytical evidence with Teactions forthe
   • Q.P. Code: 14627 Give the reaction for Hofmann exhaustive methylation and 3 Complete the following reactions : the synthesis of citral from 3-methylbutan-1-ol and 5 the selectivity of the following with two suitable examples of each 5 Complete the following reactions :
   • (2) CHO ?
2. Q4 Answer any three of the
   • (a) What is Lithium Give the preparation of Lithium 5 cuprate. What is action of the following on it?
   • (1) (2) CHI What are Grignard reagents? Give the preparation of magnesium 5 bromide. What is the action of the following on it ? Explain the term zwitter ion with respect to a . amino acids. Give the 5 ation of acid nucleoproteins and nucleic acids? Draw the doubleHelix 3 are nucleotides? Write structure of any one nucleotide ple: ited sheet structure of protein. Write any two functions 3 Complete the following reactions. 2 Answer any five of the following whether the following statements are true or
   • (i) Singlet states are more stable than corresponding Region between 3700-1400 is called Fill in the blanks with appropriate option. 3
   • (i) Decrease in the wave length of maximum absoiption is called
   • (1) - OH =0
   • G)-CN -SH In mass spectrometry the organic molecules are bombarded with high energy
   • (3) electro (4) u, v. radiations
   • (c) State whether the f wing sentences are true or false. 3 is a terpene which is composed of. repeated
   • (ii) Nylon 66 is a polymer obtained by polymerisation PVC is thermoplastic polymer, the blanks with appropriate options :- 3
   • (i) Inert substances which are added to the Polymer to increase the bulk of the polymer are called
   • (1) stabilizer (2) filler
   • (3) plasticiser (4) plastic
   • Q.P. Code: 14627 By condensation of monomer moncethylene glycol and Dimethyl polymer obtained is . C
   • (1) PET (2) Nylon 66 Natta Catalyst is used for the
   • (1) alkane (2) alkene
   • (3) alcohol (4) acid Fill in the blanks with appropriate option is isolated from Citral on heating with KHSO, whether the following statements are:true or false. 3 Citral-a on reduction with gives Geraniol Terpineol is obtained cardamom oil Fillin the blanks with option:- 3 Conjugated is found in Gi) The transmission of potential characteristics from parent to wh ether the following statements are true or false
   • (i) Nucleotide is phosphoric ester of Nucleoside
   • (i) ctric point (pl) of all amino acids is same

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