Fresher Jobs

Our fresher job section is exclusively for fresh graduates! Find jobs for freshers in major Indian cities including Bangalore, Chennai, Hyderabad, Pune or Kochi

Resources

Find educational articles, blogs, discussion threads and other resources.

Colleges

Find details about any college in India or search for courses.

Download Model question papers & previous years question papers

Posted Date: 01 Aug 2009 Posted By: Sunil Reddy Member Level: Platinum

2009 Jawaharlal Nehru Technological University Jntu Hyderabad, Code No: 07A4BS03 Set No.4 II B.Tech II Semester Regular Examinations, May 2009 ORGANIC CHEMISTRY (Chemical Engineering) Question paper

Course: B.Tech Chemical engineering

University: Jawaharlal Nehru Technological University

Code No: 07A4BS03 Set No. 4
II B.Tech II Semester Regular Examinations, May 2009
ORGANIC CHEMISTRY
(Chemical Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
? ? ? ? ?
1. (a) Differentiate between inductive effect and resonance effects giving examples
(b) Explain why ammonia is a weaker base than diethylamine ? [8+8]
2. (a) What are electrophiles? Explain the different types giving examples.
(b) Explain why electrophilic substitution reactions take place in benzene? [8+8]
3. (a) Discuss the reaction between acetone and p-dimethylaminobenzaldehyde in
the presence of aq.ethanolic NaOH.
(b) Outline a laboratory method for the preparation of Cinnamic acid? [8+8]
4. (a) Describe any two methods for radical generation.
(b) Give one example for neutral radical, cation radical and anion radical.
(c) Describe the thermal halogenation of ethane. [6+6+4]
5. (a) What is geometrical isomerism in organic compounds due to?
(b) Explain the E-Z system of nomenclature for geometrical isomers giving exam-
ples. [10+6]
6. Describe the preparation, properties and use of:
(a) Teflon and
(b) Nylon. [8+8]
7. Formulate the following reactions and give explanation for the formation of respec-
tive products:-
(a) Furfuraldehyde is treated with Conc. HNO3 at RT
(b) 2-Methylquinoline is heated with benzaldehyde at 1500C
(c) Pyrrole is treated at room temperature with pyridine SO3 complex
(d) Thiophene is heated with a mixture of KOH and CHCl3 followed by hydrolysis.
[4×4]
8. (a) If a compound does not show absorption in the UV region of electromagnetic
spectrum, can it exhibit the property of colour?
(b) Draw the resonance structures of Bismark - Brown - R.

Return to question paper search

Next Question Paper: Jntu Hyderabad, Code No: 07A4BS03 Set No.3 II B.Tech II Semester Regular Examinations, May 2009 ORGANIC CHEMISTRY (Chemical Engineering)

Previous Question Paper: Jntu Hyderabad, Code No: 07A40801 Set No. 1 II B.Tech II Semester Regular Examinations, Apr/May 2009 PROCESS HEAT TRANSFER (Chemical Engineering)