JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B. Pharmacy III GREEN CHEMISTRY Previous Question Paper (July/August - 2023 - R17)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
Define green chemistry.
Answer
Green chemistry is the design of chemical products and processes that reduce or eliminate the use and generation of hazardous substances. It focuses on the implementation of the twelve principles of green chemistry to minimize environmental impact and improve safety.
Mention the various challenges to green chemistry synthesis.
Answer
The primary challenges include the high cost of developing new green technologies, the difficulty in replacing established traditional synthetic routes, the need for specialized equipment, and the limited availability of sustainable, non-toxic raw materials on an industrial scale.
What is Michael addition reaction?
Answer
Sign in to view the complete answer paper.
Write a note on fluorous solvents.
Answer
Sign in to view the complete answer paper.
What is Fries rearrangement?
Answer
Sign in to view the complete answer paper.
Briefly describe Reformatsky reaction.
Answer
Sign in to view the complete answer paper.
What are ionic liquids?
Answer
Sign in to view the complete answer paper.
Write a note on metal catalysts.
Answer
Sign in to view the complete answer paper.
Mention the IUPAC name for Ibuprofen? Mention its uses.
Answer
Sign in to view the complete answer paper.
Describe the green synthesis of Paracetamol.
Answer
Sign in to view the complete answer paper.
Part B
Describe the history and development of green chemistry and explain why green chemistry is needed.
Answer
Sign in to view the complete answer paper.
Catalytic synthesis
Answer
Sign in to view the complete answer paper.
Microwave synthesis
Answer
Sign in to view the complete answer paper.
Describe the principle and process involved in Wartz synthesis.
Answer
Sign in to view the complete answer paper.
Describe the solventless organic synthesis and write a note on alternative solvents used in green chemistry strategies.
Answer
Sign in to view the complete answer paper.
Describe how Diels’s Alder reaction is carried out under microwave irradiation and under sonication.
Answer
Sign in to view the complete answer paper.
Describe how Strecker synthesis is carried out under sonication.
Answer
Sign in to view the complete answer paper.
Describe the principle and process involved in Knoevenagel condensation.
Answer
Sign in to view the complete answer paper.
Describe the principle and process involved in Villeger reaction.
Answer
Sign in to view the complete answer paper.
Describe the future trends in green chemistry.
Answer
Sign in to view the complete answer paper.
Describe the green synthesis strategies for Nicotinic acid and Aspirin.
Answer
Sign in to view the complete answer paper.