Download SGBAU B-Pharma 2019 Summer 4th Sem Sem IV Pharmaceutical Organic Chemistry New Question Paper

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Pages: 2

Time : Three Hours

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Pharmaceutical Organic Chemistry : BP 401 T

AW -2348

Max. Marks : 75

Notes:

1. All questions carry equal marks.

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2. Answer All questions.
3. Illustrate your answer necessary with the help of neat sketches.
4. Discuss the reaction, mechanism wherever necessary.
5. Use of pen Blue/Black ink/refill only for writing the answer book.

1. a) Multiple choice questions. 10
   1. The number of degrees of rotation observed if 1 dm tube is used and concentration of compound is 1 g/ml
      1. Optical rotation

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      2. Specific rotation
      3. Geometric rotation
      4. Conformation
   2. When equimolar quantities of dextro and levorotatory isomers are mixed together it is called as
      1. Meso compound

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      2. Keto compound
      3. Racemic mixture
      4. Diastercoisomers
   3. A carbon atom to which Four-different group are attached is a
      1. Achiral center

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      2. Chiral center
      3. Active center
      4. Inactive center
   4. Identify the following structure

      (structure description needed)

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      1. Indole
      2. Quinoline
      3. Isoquinoline
      4. Naphthalene

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   5. Single heterocyclic ring called as -
      1. Fused ring
      2. Diacyclic
      3. Monocyclic
      4. None of above

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   6. Reserpine an anti hypertensive drug which heteroaromatic ring in its structure
      1. Indole
      2. Isoquinoline
      3. Quinoline
      4. Imidazole

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   7. Gauche and anti forms are
      1. Conformational Isomers
      2. Racemic mixture
      3. Geometric Isomers
      4. Optical Isomers

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   8. The order of aromaticity
      1. Benzene > Pyrrole > Furan
      2. Pyrrole > Benzene > Thiophene
      3. Thiophene > Pyrrole > Furan
      4. Pyrrole > Thiophene > Furan

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   9. Caffeine contains which heteroaromatic ring
      1. Pyrimidine
      2. Purine
      3. Pyrrole
      4. Oxazole

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   10. NaBH4 and LiAlH4 are
       1. Oxidizing agents
       2. Neutralizing agents
       3. Complexing agents
       4. Reducing agents

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2. b) Solve following questions - 10
   1. Write about chiral molecule
   2. Stereo Isomerism in biphenyl compound.
   3. Syn and Anti system.
   4. Stereospecific reaction

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   5. Oxazole

2. Long answer type questions any two. 20

1. Discuss DL, RS and EZ nomenclature
2. Stereospecific and stereoselective reactions.

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3. Write a detailed account on furan and imidazole.

3. Short answer type questions any Seven. 35

1. Atropisomerism
2. Reactions of chiral molecules.
3. Explain racemic mixture and meso compounds are optically inactive.

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4. Claisen-Schmidt condensation.
5. Birch reduction.
6. Pyridine
7. Quinoline.
8. Sequence rules and RS system.

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9. Conformational isomerism of ethane.

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