Semester : SEMESTER 5
Subject : Organic Chemistry-II
Year : 2022
Term : NOVEMBER
Branch : INDUSTRIAL CHEMISTRY
Scheme : 2019 Full Time
Course Code : CHE 5B 07
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Section B (Short Answers)
Answer questions up to 30 marks.
Each question carries 5 marks.
How would you distinguish between 1°, 2° and 3° alcohols ?
What is Williamson’s synthesis ? How will you prepare anisole and phenetole using Williamson’s
synthesis ?
What is Reformatsky reaction ? What is its synthetic use ?
How will you distinguish pentan-2-one and pentan-3-one ?
Suggest a suitable reaction for the preparation of « halo acid. Explain using examples.
How will you prepare amines using Gabriel's phthalimide synthesis ?
Starting from ethylacetoacetate, how will you prepare succinic acid ?
(Ceiling of marks : 30)
Section C (Essay)
Answer any one question.
The question carries 10 marks.
a) Explain the mechanism of pinacol-pinacolone rearrangement.
b) Discuss the mechanism of bromination and nitration of phenol.
Write notes on:
Aldol condensation
Cannizzaro reaction
Benzoin condensation
Perkin’s reaction.
(1 x 10 = 10 marks)
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