M.Sc.(Semester IV) (CBCS) Examination Mar/Apr-2018
Industrial Chemistry
CHEMICAL INDUSTRIES
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 and 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
Give two functions of pigments in paints.
Why Plasticizers are added to paints?
What is meant by chromophores?
Why do azo dyes not impart fast colours to fabrics?
Main three advantages of alloy making.
Give structure alizarin dye.
What is meant by catalytic cracking?
What is meant by hydro treating?
What are the active ingredients in Baygon products?
What is meant by pheromone?
What is meant by nitriding?
What are cutlets? Why are they added during manufacture of ordinary glass?
Which constituent of cement causes its initial setting?
What is an enamel?
Section II
Q.2
Give the synthesis and applications of
N,N Diethyl-3-methyl benzamide and
Dimethylcarbamate.
07
What are petrochemicals? Give an outline of chemicals derived from ethylene.
07
Q.3
What are dyes? Explain the preparation, properties and applications of any one dye.
07
What are paints? Give the different constituents use in paint with their function and application.
07
Q.4
Describe in details the manufacturing process of the whiteware.
07
Explain in detail the extraction of aluminum from its ore.
07
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SLR-UF-179
Section III
Q.5
Give the composition, properties and uses of ceramic materials.
05
Describe the manufacture of lime.
05
Explain the brief the purpose of alloying.
04
Q.6
Give the synthesis and application of Dimethoate.
05
Explain in brief the cracking of crude oil.
05
Explain the classification of dyes on the basis of their application.
04
Q.7
Write a note on any THREE of the following.
14
Fluorescent brightening agents.
Manufacturing processes of titanium oxide.
Synthesis of Ziram.
Chemicals derived from propylene.