Questions on Green Chemistry for internal assessment test-2022

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B. Sc. Chemistry (Hons.) Semester-VI (Jan.— June, 2022)
Second Internal Assessment Test: 28-05-2022
Subject: Green Chemistry Paper: DSE3T
Full Marks: 10 Time: 11:30 AM to 12:00 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.
• Please Write the following on top of the first page of the Answer Papers:
Name: ______________________________Sem-VI Chemistry (Hons)
Univ. Roll____________No._______________
Regn. No._______________Session___________
Answer any five questions 5 x 2 = 10
Q.1 Explain the working mechanism of CO2 surfactants in garment industry.
Q.2 What is the waste or pollution prevention hierarchy? Give its diagrammatic representation as
a pyramid.
Q.3 Why ionic liquids are termed as “designer solvents”? Provide an example to support your
answer.
Q.4 Write a short note on: Immobilized solvents
Q.5 Draw the chemical structures for the following ionic liquids.
(i) 1-Butyl-3-methylimidazolium thiocyanate
(ii) 1-Butyl-3-methylimidazolium methanesulfonate
Q.6 What are antifoulants? What were the adverse effects of the conventional antifoulant?
Q.7 Write down the schematic representation of the green method of producing poly Lactic Acid
(PLA) starting from corn.
Q.8 Write the differences between cradle to cradle (CTC) and cradle to grave (CTG) methods of
life cycle assessment of a chemical product.
Q.9 Write short notes: Fully recyclable carpet: Cradle to cradle carpeting
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TAMRALIPTA MAHAVIDYALAYA
DEPARTMENT OF CHEMISTRY
Tamluk :: Purba Medinipur :: 721636