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VES College of Pharmacy, ChemburPractice Question Bank for End Semester ExamOrganic Chemistry III CBCS SemesterVCourse Code: BPH_C_501_TAll Answers are Option ASr. No.Questions1The name of the following structure isAThieno[2,3-b]furanBFuro[2,3-b]thiopheneCThieno[3,2-b]furanDFuro[3,2-b]thiophene2Piperidine is more basic than pyridine because the electrons on nitrogen in piperidineare prresent inAs orbitalBsp3 orbitalCsp2 orbitalDp orbital3The structure for 5-aminomethyl-1,2-oxazole isABCPage 1
D4Which of the following is Industrial process for synthesis of PyrroleABCD5The product of Gatterman reaction of furan isA2-phenylfuranBFuran-2-carboxylic acidC2-acetylfuranD2-formylfuran6The synthesis of 1,2-dimethylimidazole using Debus-Radziszewski involves followingreactantsAButane-2,3-dione+formaldehyde+ammoniaBGlyoxal+Acetyldehyde+MethylamineCGlyoxal+Formaldehyde+DimethylaminePage 2
DButane-2,3-dione+formaldehyde+Methylamine7Which of the following name reaction is used for synthesis of oxazoleAHantzsch's SynthesisBDebus-RadziszewskiCBlumlein-Lewy synthesisDCook-Heilborn's Synthesis8Sulfonation of Thiazole yieldsAThiazole-5-sulfonic acidBThiazole-4-sulfonic acidCThiazole-3-sulfonic acidDThiazole-2-sulfonic acid9Which of the following dicarboxylic acid can used in pyrimidineAOxalic acidBTartaric acidCMalic acidDAdipic acid10Pyridine is reduced to 1,2-dihydropyridine usingANa/NH3BH2/NiCLiAlH4DHI11Preparation of 6-methylquinoline by Skraup synthesis involves reaction of glycerol andA3-methylanilineB4-methylanilineC2-methylanilineDN-methylaniline12Which of the following name reactions involves following reaction schemeAPomeranz- Fritsch synthesisBBischler-NapieralskiCFriedlander synthesisDConrad-Limpach synthesisPage 3
13The oxidation of quinoline to quinolinic acid is done byAOzoneBHydrogen PeroxideCPerbenzoic acidDPotassium permangnate14The reaction of oxirane and 2-aminoethanol will yield following heterocycleAPiperazineBMorpholineCPiperdineDPyridine15Piperidine can be prepared by reduction of following heterocycleAPyridineBPyrimidineCPyrazineDPyridazine16Which of the following reactions testosterone analogues will haveAAcetylationBHydrolysisCOxidationDReduction17Which of the following belongs to the C18 steroidal backboneATestosteroneBEstrogenCProgesteroneDCholesterol18Which of the following reactions testosterone analogues will haveAOxidationBHydrolysisCAcetylationDReduction19In given polypeptide Arg-Try-Ile- Gly - Asp, which is C-terminus amino acidATyrBGlyCArgDAsp20Which of the following amino acid forms sulphide bond in polypeptidePage 4
AArgBCysCLeuDGly21Structure of DNA molecule isADouble strandedBSingle strandedCBranchedDLinear22Polymer contains 13 molecules with weight of 55000 unit each. Find out total weight ofpolymerA715000B615000C610000D70000023Thermoplastics haveATg=0BLow TFCNeutral TgDHigh Tg24Chain growth polymerisation includes following steteps in the order of ---------------AInitiation, Migration ,TerminationBInitiation, Elongation, TerminationCInitiation, Migration and elongationDInitition, termination, migration25Which of the following is a branched polymer?Ahigh density polymerBpolyesterClow density polymerDnylonPage 5
Answer key1. C2. B3. A4. A5. D6. B7. C8. A9. C10. C11. B12. A13. D14. B15. A16. C17. B18. A19. D20. B21. A22. A23. D24. B25. CPage 6
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