B.Sc. III (Semester VI) (Entrepreneurship) (CGPA) Examination, 2018
Industrial Chemistry
Techniques in industrial Chemistry
Day and Date Thursday 1-11-2018 Max. Marks 70
Time 10:30 a.m. to 1.00 p.m.
Instructions All questions are compulsory.
Draw neat labelled diagram and give equations wherever
necessary.
All questions carry equal marks.
Figures to the right indicate full marks.
1. Select the correct alternative from among those given below and rewrite the
sentence. 14
In paper chromatography, the stationary phase is
paper water organic liquid inorganic liquid
ii) The Zeolite is regenerated by soaking it in solution.
10% NaCl 10% HCl 10% NaOH 10% H2SO4
iii) If cathode efficiency anode efficiency, the bath becomes in metal
content.
rich poor constant none of these
iv) is an example of type B fires.
Wood Cloth Paper Oil
Gas chromatography is used for the separation of mixture of
components.
volatile non volatile solid-liquid solid-solid
vi) Friedel Craft reactions are used to introduce groups.
hydroxy chloro alkyl amino
vii) According to first law of electrolysis, amount of substance deposited
or dissolved at any electrode is directly proportional to the quantity of
passed through the electrolyte.
Current Faraday electrons electricity
viii) and ions are responsible for hard water.
and and Na+
and and
ix) The silica gel is used in column chromatography as
effluent adsorbent absorbent none of these
of pure Nickel is used as anode for Nickel plating.
100 99 50 75
Seat
No. Set P
Set P
SLR-SK 55 *SLRSK55*
xi) In any chromatographic technique the number of phases involved in
separation is
0 1 2 4
xii) The removal of oxide or dust on the article by the action of mineral acids
like HCl, H2SO4 and HNO3 is called
agitation anodizing circulation pickling
xiii) Biocatalytical reactions are catalysed by
Proteins E nzymes Carbohydrates alcohols
xiv) In gas chromatography is used as mobile phase.
Helium Hydrogen cyanide
Pet. ether ethyl alcohol
2. Answer any seven of the following 14
What is general principles of chromatography
ii) What is cathode and anode efficiency
iii) Define Zeolite and write structure of Zeolite.
iv) Give the advantages of Paper Chromatography.
Name the different types of fires.
vi) Write the Faraday's law of electrolysis.
vii) E xplain the term Antifreeze extinguishers.
viii) How Rf value can be calculated
ix) what is green chemistry
3. Attempt any two of the following 10
Write Short note on Cleaning of articles.
ii) Portable Fire extinguishers.
iii) Friedel craft's alkylation.
What is Column Chromatography Draw a neat labeled diagram of
Column Chromatography. 4
4. Attempt any two of the following 14
Give the twelve principles of Green Chemistry.
ii) E xplain the electroplating of Nickel.
iii) Describe the Soda acid extinguishers.
5. Attempt any two of the following 14
What are the biocatalysts Write the advantages and disadvantages of
biocatalyst.
ii) Discuss the basic principles of electroplating.
iii) Explain classification of Water and it's types.