Define the following terms. i. Enantiomer ii. Diastereomer iii. Atropisomers iv. Absolute configuration v. Racemic mixture vi. Geometric isomers
[6 marks]Write a note on resolution of racemic mixture.
[5 marks]Explain in brief about stereochemistry of biphenyls.
[5 marks]Write a note on Sandmeyer reaction.
[6 marks]write a note on Kolbe reaction.
[5 marks]Explain the synthesis of phenol from cumene.
[5 marks]Complete the following reactions. C 2 H 5 MgBr ? H+ ? H O2 NH 3 ? H+ ? H O2 HNO 2 ? CuCN ? 5-10 C
[6 marks]Write a note on Hoffmann degradation of amides.
[5 marks]Write a short note on benzyne mechanism for nucleophilic aromatic substitution.
[5 marks]Enumerate different methods for preparation of carboxylic acids and explain oxidation reactions to prepare carboxylic acid.
[6 marks]Give the R & Sconfiguration of following compounds. COOH CHO CHO H NH H OH H Br2 CHOH CHCH COOH223
[5 marks]Write a note on acidity of carboxylic acid and effect of substituents on acidity.
[5 marks]Write a note on aldol condensation.
[6 marks]Give the different reactions of carboxylic acids.
[5 marks]Write down the properties and preparations of indole. Q. 6 (a) Give the preparation and properties of Pyridine.
[6 marks]Give any two methods for preparation of quinoline.
[5 marks]Write a note on microwave synthesis.
[5 marks]Answer the following questions. i. Justify: imidazole is basic. ii. Justify: furan is aromatic.
[6 marks]Give the structure of following ring systems. i. Thiophene ii. Isoquinoline iii. Pyrimidine iv. Oxazole v. Isothiazole
[5 marks]Write in detail about principles of green chemistry.
[5 marks]