B.Sc. (Part II) (Semester IV) (Entrepreneurship) (CBCS) Examination, 2018
industrial chemistry (Paper VIII)
Industrial Aspects of Applied Chemistry
Day and Date Monday, 7-5-2018 Total Marks 70
Time 10.30 a.m. to 1.00 p.m.
Instructions All questions are compulsory.
Draw neat labeled diagram and give equations wherever
necessary.
All questions carry equal marks.
Figures to the right indicate full marks.
1. Select the most correct alternative from among those given below and rewrite the
sentence: 14
In ore, metal atoms are present in atomic state.
Halide Sulphide Native Oxide
ii) The process of cleaning the article in acid is known as
Pickling Washing Tumbling All of these
iii) One of main contents of fertilizers is
Ammonia Chlorine Hydrogen Methane
iv) Optical glass may also be known as
Staple glass Crooker's glass
Fiber glass All of these
Triple super phosphate generally contains 44 47%
N2O5 K2O P2O5 None of these
vi) In chromic acid anodizing process, chromic acid is used.
9 6 3 1
vii) Urea has highest content (46
Nitrogen Potassium Phosphorus Sodium
viii) The sharp edges of glass are removed by cutting, grinding and polishing
these process called as
Shaping Fusion Finishing Annealing
ix) The Greek word 'Keramos' mean
Glass Polymer Fuel Ceramic
The infusible mass produced during removal of gangue from ore by adding
flux is called
Slag Matrix Cullets Minerals
xi) For good quality nickel plating, the optimum pH ranges is
2 3 3 4 4 5 5 6
xii) sold in market as muriate of potash.
Super phosphate Ammonium sulphate
Potassium fertilizer Urea
xiii) The pieces of waste glass is known as
Flux Cullets Slag None of these
xiv) is used where sea water contact is there.
Low heat cement Moderate heat cement
High strength cement Sulphate resistant cement
2. Answer any seven of the following: 14
Define Native ore and oxidized ore.
ii) What are basic principles of electroplating
iii) Write the factors which affects on the fertility of soil.
iv) Write the properties of glass.
What is ceramic Give it's two application.
vi) Draw neat labeled diagram of magnetic separation method of ore.
vii) Give any two application of anodizing.
viii) Write the good qualities of an ideal fertilizer.
ix) What are colored glasses
3. Attempt any two of the following 10
Explain the types of cements and give their applications.
ii) Describe the raw materials used for the preparation of glass.
iii) Explain the pollution caused by fertilizers.
Distinction between calcinations and roasting. 4
4. Answer any two of the following 14
Describe electroplating of chromium.
ii) Give the classification of fertilizers according to their mode of operation on
soil with example.
iii) Describe in detail the types of glass.
5. Write note on any two of the following 14
Manufacturing of Portland cement by wet process.
ii) Manufacturing of glass by tank furnace.
iii) Extraction of Iron by blast furnace.