Pharmaceutical Organic Chemistry II Exam 2022-23 PDF

ODD SEMESTER EXAM, 2022-23 Course: Pharmacy Branch: B. Pharm Semester: III Subject Code: BP301T Subject Name: Pharmaceutical Organic Chemistry II Time: 03 Hrs...

ODD SEMESTER EXAM, 2022-23 Course: Pharmacy Branch: B. Pharm Semester: III Subject Code: BP301T Subject Name: Pharmaceutical Organic Chemistry II Time: 03 Hrs Marks: 75 ……………………………………………………………………………………… PART A (QUESTION NO. 1 TO 20, ATTEMPT ALL QUESTIONS) (20 x 1 = 20) 1. Which of the following statements is true for benzene? (a) Benzene easily undergoes addition due to unsaturation (b) 𝞹-electrons are delocalised in the benzene ring (c) Three isomeric forms are formed on monosubstitution of benzene (d) None 2. Why Keto-enol tautomerism arises? (a) Due to Migration of enolic group (b) Due to Migration of a keto group (c) Due to Migration of a proton (d) Due to Migration of hydroxyl group 3. Which is true regarding Tautomers? (a) Tautomers must have Dynamic equilibrium between functional isomers (b) Tautomers must have Same functional group (c) Tautomers must have Same position of double bond (d) Tautomers must have Static equilibrium between functional 4. Saponification is the value of oil for which the number of mgs of KOH required to saponify the ________ present in the 1g of oil. (a) Protein (b) Fats (c) Carbohydrate (d) Ester 5. Which of the following is a characteristic of an aromatic compound? (a) Cyclic (b) Planar (c) (4n+2)𝞹 electrons (d) All of the above 6. In which compound only one benzene ring is present…. (a) Carboxylic (b) Aryl (c) Ketone (d) Acryl 7. Geometric isomerism found in…… (a) Alcohol (b) Alkenes (c) Alkanes (d) Ester 8. Element which is called backbone of organic molecules….. (a) Argon (b) Sulphur (c) Carbon (d) All of these  9. Which of the following compounds do not contain a carbonyl group? (a) Alcohol (b) Aldehyde (c) Ketone (d) Carboxylic acid 10. How many carbon atoms does formaldehyde have ? (a) 1 (b) 2 (c) 3 (d) 0 11. The number of delocalised 𝞹 electrons in the benzene ring are (a) 6 (b) 8 (c) 2 (d) 4 12. Which of the following is the reactive species in the nitration of benzene? (a) NO2+ (b) NO2– (c) NO3 (d) HNO3 13. When phenol is treated with excess bromine water it gives (a) m-bromophenol (b) p-bromophenol (c) 2,4-dibromophenol (d) 2,4,6-tribromophenol 14. Phenol on reduction with H2 in the presence of Ni catalyst gives (a) Benzene (b) Toluene (c) Cyclohexane (d) Cyclohexanol 15. Dehydration of alcohol is an example of (a) addition reaction (b) Substitution reaction (c) Elimination reaction (d) Diphenylamine 16. Aniline is less basic than (a) Ammonia (b) Methyl amine (c) N-Methyl aniline (d) All of the above 17. ……………………………………….. are insoluble in water. (a) Proteins (b) Fats (c) Sugar (d) Carbohydrate 18. Benedict tests are used for detection of (a) Protein (b) Carbohydrate (c) Milk (d) Fats 19. Compound lipids are also known as (a) Carbon (b) Oxygen (c) Hydrogen (d) All of above 20. Phenols are………….. acidic as compared to alcohols (a) More (b) Less (c) Equal (d) None of Above PART B (QUESTION NO. 21 TO 23 ATTEMPT ANY 2) (2 x 10 = 20) 21. Discuss the Nomenclature, Chemistry, preparation and properties of Phenols. 22. Write various methods of preparation of aromatic amines. 23. Discuss in details various reactions of Benzene.  PART C (QUESTION NO. 24 TO 32 ATTEMPT ANY 7) (7 x 5 = 35) 24. Write various methods of preparation of anthracene. 25. What are fatty acids? Discuss the reactions of fatty acids. 26. Discuss Huckel’s rule by providing suitable examples. 27. Write the method of synthesis of aromatic acids. 28. Write various methods of preparation of Phenantherene. 29. Discuss in detail Baeyer’s strain theory and limitation of Baeyer’s strain theory. 30. Arrange the amines in ascending order of Basicity. What is the effect of substituents on basicity of amines? 31. Write short note on Acid value, Saponification value and Ester value. 32. Discuss Structure and uses of DDT, BHC and Chloramine.