This document contains information about an organic chemistry exam for Bachelor of Science Chemistry (Hons.) students during their 4th semester in January-June 2021. It provides details about two internal assessment tests on the topics of Nitrogen Compounds and Rearrangements (Test 1 on 17-07-2021) and The Logic of Organic Synthesis and Organic Spectroscopy (Test 2 on 22-07-2021). It instructs students to answer 5 out of the 8 questions for each 2-hour exam and submit their answer papers as PDF files to the provided email address by the mentioned deadlines.

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BSc Chemistry (Hons.) Semester-IV (Jan.-June, 2021)
First Internal Assessment Test: 17-07-2021
Subject: Organic Chemistry Paper: C10T
Full Marks: 10 Exam. Hours: 10:00 AM to 10:30 AM
Candidates are required to give answers in their own words and briefly
as far as practicable. Questions are of equal value. All parts of a question
must be attempted together.
Submit pdf of Answer paper to: satyajit@tmv.ac.in
• Please Write the following on top of the first page of the Answer
Papers:
Name: ______________________________Sem-IV Chemistry (Hons) FM: 10
Univ. Roll____________No._______________Regn. No._______________Session___________
• Please use the PDF file name in the Format: Your First Name-Sem-
IV-Hons-1st Internal Assessment Test, 17-07-2021
Nitrogen Compounds and Rearrangements
Answer any five questions 5 x 2 = 10
Q.1 Suggest mechanism and stereo-chemical outcome of the following
reaction.
Q.2 Identify the starting material of the following Claisen rearrangement
reaction.
TAMRALIPTA MAHAVIDYALAYA
DEPARTMENT of CHEMISTRY
Tamluk :: Purba Medinipur :: 721636

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Q.3 Identify the products X and Y of the following reactions sequence.
Q.4 In the following Beckman rearrangement, two isomeric products are
possible. Draw them. Explain which one is formed and why?
Q.5 Write down the mechanism of the following reaction.
Q.6 Identify the products A and B that might be formed in the following
reactions sequence:
Q.7 What is Henry reaction? Show its mechanism.
Q.8 Explain the following differences
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BSc Chemistry (Hons.) Semester-IV (Jan.— June, 2021)
Second Internal Assessment Test: 22-07-2021
Subject: Organic Chemistry Paper: C10T
Full Marks: 10 Exam. Time: 10:00 AM to 10:30 AM
Candidates are required to give answers in their own words and
briefly as far as practicable. Questions are of equal value. All parts
of a question must be attempted together.
Submit pdf of Answer paper to: satyajit@tmv.ac.in
• Please Write the following on top of the first page of the Answer
Papers:
Name: ______________________________Sem-IV Chemistry (Hons) FM: 10
Univ. Roll____________No._______________Regn. No._______________Session___________
The Logic of Organic Synthesis and Organic Spectroscopy
Answer any five questions 5 x 2 = 10
Q.1 π → π* transition shows bathochromic shift in polar protic solvent.
Justify the statement
Q.2 H+ ion shifts the n→ π* transition of C=O to higher energy. Explain.
Q.3 Demonstrate how IR spectroscopy might be used to monitor the progress
of the following reaction.
Q.4 Define the term: Chemical shift.
Q.5 Find out the products A and B of the following reactions sequence.
TAMRALIPTA MAHAVIDYALAYA
DEPARTMENT of CHEMISTRY
Tamluk :: Purba Medinipur :: 721636

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Q.6 Show retrosynthesis and proposal of synthesis of the following
molecule (any one)
Q.7 Using protection-deprotection technique how would you carry out the
following transformation
Q.8 Show how “reconnection” technique may be used in synthesis of a
target molecule containing 1,6-dioxygenated functionality.
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