M.Sc. (Semester III) (CBCS) Examination Mar/Apr-2018
Industrial Chemistry
UNIT PROCESSES IN CHEMICAL TECHNOLOGY
Time: 2½ Hours
Max. Marks: 70
Instructions: Attempt in all five questions. Section-I is compulsory. Attempt any two questions from Section-II and any two questions from Section -III. Answer to all questions (Section II, III) should be written in the one answer book. All question carry equal marks. Figures to the right indicate full marks.
Section I
Q.1
Answer the following.
14
What is meant number average molecular weight?
Ethylene oxide acetic acid →
CH3COOC2H5 C15H31COOH →
(CH3CO)2O C2H5OH →
CH3OH SO3 →
(CH3)2O SO3 →
C12H25C6H5 SO3 →
What is meant homopolymers?
What is meant atactic polymers?
Give the classification of polymers.
2CH4 2HCl O2 →
CH3CH=CCl2 Cl2 →
C6H6 3HNO3 →
Glycerol HNO3 →
Section II
Q.2
Discuss in brief the manufacturing process of nitrobenzene.
07
Describe in details the manufacturing of monosulphonation of benzene.
07
Q.3
Discuss in brief the manufacturing process of phenol- urea resin.
07
Discuss in details the manufacture of ethyl acetate.
07
Q.4
Explain with flow chart the manufacturing process of chloral.
07
Give an account on vapor phase oxidation of methanol.
07
Section III
Q.5
Explain liquid phase oxidation of acetaldehyde to acetic acid.
05
Describe in brief the esterification by organic acid.
05
Describe the different method of polymerization.
04
Page 2 of 2
SLR-UF-172
Q.6
Give the synthesis, properties and application of polyesters.
05
Explain with labeled diagram the working of Biazzi nitrator.
05
Give an account on types of oxidative reaction.
04
Q.7
Write a note on any Three of the following.
14
Working up procedures for Sulphonation
Manufacture of chlorobenzene
Manufacture of vinyl acetate
Acrylonitrile polymers