JNTU
JNTU B.Pharmacy I Year PHARMACEUTICAL ORGANIC CHEMISTRY – I Previous Question Paper (September/October - 2023 - R17)
Note: i) Question paper consists of Part A, Part B.
ii) Part A is compulsory, which carries 25 marks. In Part A, answer all questions.
iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
Write the structure of 4-hydroxy-3-methylbutanal.
Answer
The structure is: HO-CH2-CH(CH3)-CH2-CHO
Write the IUPAC name and common name for CH3(CH2)3COOH.
Answer
The IUPAC name is pentanoic acid and the common name is valeric acid.
What is Diel-Alder reaction?
Answer
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Explain Saytzeff’s rule with an example.
Answer
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Write the structure and uses of Propylene glycol.
Answer
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Write a note on rearrangement of carbocations.
Answer
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Explain Nucleophile addition reaction with an example.
Answer
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Write the structure and uses of cinnamaldehyde.
Answer
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Write the structures of Tartaric acid and Citric acid.
Answer
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Write a note on basicity of aliphatic amines.
Answer
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Part B
Explain about Metamerism and Tautomerism in detail with examples.
Answer
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Explain IUPAC rules for alkenes with examples.
Answer
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Explain IUPAC rules for carbocyclic compounds with examples.
Answer
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Explain about homocyclic and heterocyclic compounds in detail with examples.
Answer
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Explain about E1 and E2 reactions with mechanism in detail.
Answer
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Write a note on classification of dienes with examples.
Answer
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Explain briefly about factors affecting E1 and E2 reactions.
Answer
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Write a note on Markownikov and Anti-Markownikov addition products.
Answer
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Discuss Walden Inversion with mechanism in detail.
Answer
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Write any two identification tests for distinguishing 1°, 2°, 3° alcohols.
Answer
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Write the structure and uses of Tetrachloroethylene and Chlorobutanol.
Answer
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Discuss the factors affecting SN1 and SN2 reactions in detail.
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Explain Benzoin reaction mechanism with an example.
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Write any three methods of preparation for aldehydes.
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Explain Perkin condensation mechanism with an example.
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Write the structure and uses of Paraldehyde and Hexamine.
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Write any three qualitative tests for the identification of carboxylic acids.
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Write a note on preparation methods of aliphatic carboxylic acids.
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Write any three qualitative tests for the identification of aliphatic amines.
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Write the structure and uses of Ethanolamine and Amphetamine.
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