TYBSc Chemistry Sem 6 Organic Chemistry Question Paper PDF 2026 - Mumbai University | munotes

Questions asked in this paper

1. Q2 pyridine ‘ substitution reaction in furan 3 te the following reactions. akes place at 02 the preparation of Raney Nickel .Explain its use in the reduction of j Ex lair — Haack reaction’ of furan the following reactions of the following Projections to Hawo h he reactions for oxidation of D ert the following Fisc 4 he reactions for fiormation of osazone from D-g fructopyranose in a stepwise manner reactions for complete methylation of B-D fructopy 02 o and B forms of 4 marks
   • Q.P. Code :04002 no the bases present DNA molecule and discuss its double helical structure vhat polypeptides? How do they differ from proteins? Give the struct he term iso-electric point witt structure of Gly-Ala-Gly, sctric point with reference to amino acids, three of the following, is an auxochrome? Give two examples of auxochromes in organic molecules, With the help of a 05 example, explain hoiw auxochrome interactions bring about bathochromic shift of An organic compound has molecular formula Determine the index of its hydrogen deficiency and deduce its formula from the following spectral data, Also write name of the compound. a () a) Organie molecules having symmetrical structures produce very r. absorption bands as comparedto those which have unsymmetric structures, Explain this with suitable examples Explain with a suitable example how i. spectroscopy is used to follow the course of a chemical reaction
   • a) Explain the mass spectral fragmentation pattern of butanone. 03 j
   • b) What is a peak? Explain its importance. 02
   • a) State the number of signals and splitting pattern in pmr spectra of the following compounds. 03
   • ii) 2-chloropropane 4 bb) Explain anisotropic deshielding of aldehydic proton, 02 An organie compound has molecular formula Determine the index of its hydrogen deficiency and 05 a deduce its structural formula from the following data. Also write name of the compound. 4 Answer any three of the following 4
   • A) a) What are Ziegler Natta catalysts? Explain their role in the stereospecific synthesis of polypropylene
   • b) Identify the monomers in the following polymers:
   • ii) H
   • a) Write the products of ozonolysis of enoids write an example. 2
   • b) Explain special isoprene role in terp j aration, properties and uses of
   • a) Give the prep mple with structure
   • b) What are biodegradable p pinene converted of the heterocyclic ring system. 02 Give the classification of alkaloi 4
   • Q.P. Code :04002 Explain the following terms in Polymer chemistry
   • b) Give the structures of : 02
   • i) ii) Vitamin A
   • a) What is condensation polymerization? Give the reaction involved in the preparation of 03 polyurethane. Mention its applications
   • b) Write the products of Hofmann exhaustive methylation and degradation of 02 the completed statements 04 4 hoose the right answer from the alternatives given below each and q
   • a) Wilkinson’s catalyst consists of transition metal Rho )
   • b) Esters on reduction with give (secondary alcohol, primary alco
   • c) on reduction with NaBHa gives Benzyl amine (Benzaldehyde,
   • d) is a reagent which causes epoxidation of olefinic double bonds.(SeO2, complete the following reactions:
   • Q.P. Code :04002 3 blanks by choosing the correct options 04 are hydrolyzable lipids
   • p) The base present in both RNA and DNA is
2. Q3 The coiling and folding of a protein molecule describes its structure
   • v) disaccharide the blanks with appropriate choice
   • a) transitions require maximum amount of energy
   • b) Vibrations which bring about change in of a molecule cause |.R. absorption
   • c) Spacing between peaks of a multiplet is called constant
   • d) Magnetic anisotropy brings about of aldehydic proton State true or false
   • p) Ifa compound is transparent in the range 750-400 nm, it does not contain any unsaturated group
   • q) Nujol is used as a mulling agent in
   • r) PMR- signal of proton normally appears asa doublet
   • s) Mass spectrometry involves interaction of electromagnetic radiation with the sample Match the columns:
   • a) i) synthetic rubber 4
   • iv) Thermoset
   • v) Condensation polymer ) State whether the following One true/ false. a
   • p) All natural products
   • q) Citral is an acylic a

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