B.Sc-B.Sc Industrial Chemistry 1st Sem INDUSTRIALCHEMISTRY - II(University of Pune, Pune-2013)

                                 F.Y. B.Sc. (Vocational)

SEAT No. :

[Total No. of Pages : 3

INDUSTRIALCHEMISTRY - II

(Paper - II) (2008 Pattern)

Time : 3 Hours]                                                                                                [Max. Marks :80

Instructions to the candidates:

1) All questions are compulsory.

2) Answers to the two sections should be written in separate books. 3) Neat diagrams must be drawn wherever necessary.

4) Figures to the right indicate full marks.

5) Use of logarithmic tables slide rule, Mollier charts, electronic pocket

calculator and steam tables is allowed.

6) All questions carry equal marks.

SECTION - I

Q1) Answer the following:                                                                                             [8]

a)       Give any two uses of solid fuels.

b)       What is producer gas?

c)       What is meant by carbonisation?

d)       Name a few substances present in coal tar.

Q2) Attempt any two of the following:                                                                     [8]

a)       Give the chemical constitution of coal.

b)       Describe the synthesis of bio-gas.

c)       What is calorific value? How is it estimated by different methods?

P.T.O.

Q3) Attempt any two of the following:                                                                     [8]

a)       Discuss in brief distillation of coal tar.

b)       Give detailed classification of gaseous fuels.

c)       Write a short note on origin of petroleum.

Q4) Answer any one of the following:                                                                       [8]

a)       What is cracking? Differentiate between thermal and catalytic cracking.

b)       Discuss the advantages and disadvantages of solid fuels over gaseous

and liquid fuels. List a few industrial solid fuels.

Q5) Answer any one of the following:                                                                       [8]

a)       i)        Write a short note on processing of liquid fuels.

ii)       The ultimate analysis of a coal gave the following results : C = 82%,

S = 2.5%, N = 0.8%, H = 5.8% and O = 8.9% calculate the gross and net calorific value of the coal using Dulong’s formula.

b)       Write a short note on aviation gasoline and

Define : i)         Flash point.

ii)       Ignition temperature.

SECTION - II

Q6) Answer the following:                                                                                             [8]

a)

b)

c)

d)

[4317]-36

Define Electrometallurgy.

Define flux. Give examples.

Differentiate between ore and an alloy.

Give names of oils used as frothers in froth floatation process.

2

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