B.Sc. II (Semester – IV),CHEMISTRY Paper – VIII : Analytical and Industrial Inorganic Chemistry, 2014 Question Paper,Solapur University Question Paper

Solapur University Question Paper
B.Sc. II (Semester – IV) Examination, 2014
CHEMISTRY
Paper – VIII : Analytical and Industrial Inorganic Chemistry
Day and Date: Saturday, 26-4-14 Max. Marks: 50
Time: 11.00 a.m. to 1.00 p.m.
Instructions : 1) All questions are compulsory.
2) Draw neat labelled diagram and give equations wherever
necessary.
3) Figures to right indicate full marks.
1. Select the most correct alternative and rewrite the following sentences : 10
1) The rapid change in pH of titration is shown by parallel line to the pH-axis in
the neutralisation curve is known as __________
a) titration break b) end point
c) equivalence point d) all of above
2) The particle size of curdy precipitate is ___________
a) 10–9 to 10–6 m b) 10–10 to 10–9 m
c) 10–6 to 10–5 m d) 10–2 to 10–3 m
3) The organic dyestuffs which are chelating agent themselves forms complexes
with metal ion and show change in colour with change in concentration of
metal ion is known as __________
a) indicator b) redox indicator
c) acid-base indicator d) metallochromic indicator
4) Coagulation and ___________ are reversible to each other.
a) crystallization b) peptization
c) neutralization d) neucleation
5) In the hydrogenation of vegetable oil ________ is used as a catalyst.
a) Al b) Cu c) Ni d) Pt
Seat
No.
P.T.O.
SLR-C – 85 -2- 
6) To destroy pathogenic microbes in potable water commonly ________ is used.
a) chlorine b) fluorine c) iodine d) all of these
7) All available resources of water _________ is the purest form of water.
a) river b) lake c) pond d) rain
8) The __________ is known as king of chemicals.
a) NH3 b) H2SO4 c) HNO3 d) HCl
9) The properties of different varieties of steel depend on __________
a) percentage of carbon b) metal other than iron
c) method of preparation d) all of these
10) Chromium-Nickel steel is used for construction of bridge in sea because it is
__________
a) cheap
b) easily available
c) resistant to corrosive action of sea water
d) all of these
2. Answer any five of the following : 10
i) What is primary standard ? Give any two examples.
ii) Precipitation must be carried out from hot and dilute solutions. Why ?
iii) Explain the role of promoters in catalysis.
iv) What are the parameters of potability of water ?
v) Write balanced chemical reactions in the manufacture of sulphuric acid by
contact process.
vi) Why cast iron is converted into steel ?
3. A) Answer any two of the following : 6
i) Write note on Quinoid theory of acid-base indicator.
ii) Distinguish between co-precipitation and post-precipitation.
iii) Give any three industrial applications of catalysis.
B) Explain the effect of temperature and pressure in the manufacture of H2SO4
by contact process. 4
 -3- SLR-C – 85
4. Write short note on any two of the following : 10
i) Types of catalysis.
ii) Ion exchange process.
iii) L.D. process.
5. Answer any two of the following : 10
i) With the help of neutralisation curve explain the choice of indicator for titration
of strong acid and weak base.
ii) Explain the characteristics of organic precipitants in gravimetric analysis.
iii) Draw a neat labelled diagram for the manufacture of ammonia by Haber’s
process. Give the optimum conditions involved in it.
—

Share This