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2 C 80864

Differentiate between conformational and configurational isomerism.
What are homologues series ? Give an example.

Define enantiomers with proper examples.

How will you convert ethylene bromide is into ethyne ? Write the reaction.
Differentiate between electrophiles and nucleophiles using proper examples.
“Tertiary alkyl halide undergo hydrolysis easily than secondary alky] halide”, Why ?

Discuss ring flipping using an example of cyclohexane.
(10 x 2 = 20 marks)

Section C

Answer any five questions.
Each question carries 6 marks.

Give the mechanism of nitration of benzene.
What are free radicals ? Discuss the stability of free radicals.
Explain any two resolution methods for a racemic mixture.
Discuss the conformations of n-butane with proper energy profile diagram.
Write a note on structure and stability of benzene based on M O concepts.
Write a note on Diels-Alder reaction using examples with 1, 3-butadiene.
Define Huckel’s (4n + 2) rule and explain the aromatic character of pyrrole and indole.
Discuss Markownikov and Anti-Markownikov addition with mechanism in alkene compounds.
(5 x 6 = 30 marks)
Section D

Answer any two questions.
Each question carries 10 marks.

(a) Write a brief note on:
(1) Oxymercuration reaction. (2) Ozonolysis reaction.
(b) Discuss Haworth synthesis of naphthalene. (6 + 4 = 10 marks)
(a) Discuss the structure, hybridization and classification of carbene intermediate.
(b) Discuss the mechanism of addition of water into alkene with proper examples.

(6 + 4 = 10 marks)