Gujarat Technological University 2009 B.E Chemical Engineering Organic Chemistry and Unit Processes - Question Paper
GUJARAT TECHNOLOGICAL UNIVERSITY
B.E. Sem-III (Biotechnology) Examination December 2009
Seat No. Enrolment No.
Subject Name: Organic Chemistry and Unit Processes Date: 21 /12 / 2009 Time: 11.00 am - 1.30 pm
Total Marks: 70
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) What are organic reactions? Classify organic reactions and 06 explain substitution reaction along with examples.
(b) Give functional derivatives of carboxylic acids with 04 examples.
(c) Give the metallurgy of iron? 04
06
04
04
04
04
Q.2 (a) What is meant by unit process? What is its utility for industrial purpose? Explain nitration.
(b) Mention general steps involved in metallurgy with suitable examples.
(c) Convert:
i) Toluene to benzyl chloride
ii)Naphthalene to 1,8 - di nitro naphthalene
OR
(b) Give physico-chemical applications of Uranium.
(c) Fill in the blanks:
Substitution reaction takes place in_type
i)
ii)
iii)
iv)
of hydrocarbons.
Carbohydrates are_aldehydes and ketones.
Glucose is_type of sugar.
Transfer of electron results to
bonds.
Q.3 (a) How can the mechanism be studied for organic 06 compounds? Explain in detail.
(b) Explain hybridization taking place in methane and 04 ammonia molecule.
(c) Mention principle involved in concentration techniques for 04 metals.
OR
Q.3 (a) What is hybridization? Mention types of hybridization with 06 suitable examples.
(c) What is thermite process? What is its utility? 04
Q.4 (a) What are carbohydrates? Classify giving suitable examples 06 and explain the structure of glucose in detail.
OR
Explain alkylation on the basis of unit processes. 06
What is flux? What is its nature? Name the substance 04 formed when flux combines with gangue impurity in metallurgical processes.
Explain amination by aminolysis. 04
(c)
(a) What is optical activity? Explain in detail with ray diagram.
(b) What are carboxylic acids and give IUPAC names of straight chain saturated compounds containing carbon atom 16 and 18.
(c) Explain halogenations on the basis of unit process with examples.
OR
Q.5 (a) Explain:
i) Enantiomerism and distereomerism
ii) Recemic modification.
(b) Mention physico - chemical property of steel with its application.
(c) Explain concept of Chirality.
Q.5
06
04
04
06
04
04
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