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Common Chemical Industries in Pakistan - 2
1.
Ammonium ___________ contains 33-35.5% Nitrogen.
a) CaO
b) Nitrate
c) Portland cement
d) Potassium
2.
__________ is required for the formation of starch, sugar and fibrous material of the plant.
a) Portland cement
b) Paper
c) Potassium
d) CaO
3.
______________ is a mixture of lime, silica, iron oxide and alumina.
a) CaO
b) CO
2
c) Portland cement
d) Potassium
4.
Calcarious material (limestone, marble, chalks, marine shell) acts as a source of __________.
a) Fertilizer
b) CaO
c) Nitrogen
d) CO
2
5.
Raw meal or slurry prepared as above is introduced into the rotary kiln with the help of a ________________.
a) Fertilizer
b) Conveyer
c) Nitrate
d) Kiln
6.
The resulting product obtained from the __________ is known as cement clinker.
a) Kiln
b) CO
2
c) Urea
d) Nitrate
7.
__________ gypsum is mixed with clinkers
a) 8%
b) 6%
c) 7%
d) 5%
8.
The main raw materials used in the production of pulp and paper in Pakistan is of _________ types.
a) Two
b) Three
c) Four
d) Five
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