Chapter 15 Chemical Industries in Pakistan MCQs
1.
Which process/ reaction
gives urea with ammonium carbonat
a)
Hlogenation b)
Dehrdration
c)
Hydrolsis d)
None of the above
2.
Urea as a fertilizer
contain
a)
57% N b) 73% N
c)
46% N d)
53% N
3.
Ammonium nitrate is a
useful fertilizer except for
a)
Wheat b) Sugar cane
c)
Barley d)
Paddy rice
4.
The phosphoric acid which
is used for the preparation of di ammonium phosphate fertilizer is having 60 to
70oC temperature and
a)
PH 5-6 b)
PH 5.8 to 6\
c)
PH 7-8 d)
PH 6 to 7.5
5.
Which three elements are
needed for the healthy growth of plants
a)
N.S.P b) N.Ca.P
c)
N.P.K d)
N.K.C
6.
The nitrogen present in
some fertilizer help plants
a.
To fight against diseases
b.
To produce fat
c.
To undergo photosynthesis
d.
To produce proteins
7.
phosphorus help in the
growth of
a)
Root b)
Leave
c)
Stem d)
Seed
8.
The wood paper is derived
from the name of which reedy plant
a)
Rose b)
Sunflower
c)
Papyrus d)
Water hyacinth
9.
Which is not a calcarous
material?
a)
Lime b)
Clay
c)
Marble d)
Marine shell
10.
Ammonium nitrate fertilizer
is not used for which crop
a)
Cotton b)
Wheat
c)
Sugar cane d) Paddy rice
11.
Cement is very important
building material which was first of all introduce by English Mason Joseph Aspdin in
a)
1875 b)
1824
c)
1860 d)
1920
12.
Paper consumption per
person in Pakistan is
a)
5kg b)
4kg
c)
6kg d)
8kg
13.
The slurry which contains
in the making of cement ……% of water
a)
35 to 45 b)
40 to 45
c)
45 to 50 d)
None of the given
14.
The dried paper is wound in
the form of a reel having final moisture of about …….%
a)
6 to 8 b) 4 to 6
c) 2
to 8 d)
5 to 8
15.
NH2-CO-NH2
is the chemical formula of
a)
Ammonia b) Diamino keton
c)
Urea d)
Both of b and c
16.
The fertility of the soil
is improved by ______
a.
Rotation of the crops
b.
Adding lime to the acid
salts
c.
Adding manure and growing
legumes
d.
All
17.
Which of the following is
incorrect statement about nitrogen importance?
a.
It enhances plant growth
b.
It is involved in the
synthesis of protein and nucleic acids
c.
It accelerates fruits and
flowers growth
d.
It is involved in the
chlorophyll synthesis
18.
The fertilizers, which
provide single nutrient from NPK, are called _________fertilizer
a)
Straight b)
Compound
c)
Both a and b d) None of the above
19.
Which of the following in
macronutrient?
a) Cu b)
Cl2
c) H2
d)
Zn
20.
Addition of urea of the
soil is ______________ reaction
a)
Endothermic b) Exothermic
c)
Both a and b d) No heat energy is
involved
21.
Which of the following is
the most suitable catalyst for ammonia synthesis?
a)
Pt b) ZnO + Cr2O3
c)
Fe2O3 + MO2O3 d) All of the above
22.
The cooling of molten urea
by air in the tower is called_________
a)
Prilling b)
Evaporation
c)
Condensation d) Crystallization
23.
Which of the following
fertilizers is more useful for paddy rice?
a)
Urea b)
DAP
c)
Ammonium sulphate d) Ammonium nitrate
24.
DAP (Diammonium hydrogen
phosphate) contains _______ PLANT nutrients.
a)
60% b)
65%
c)
70% d)
75%
25.
Which of the following
potassium fertilizers are more useful for horticultural crops, tobacco &
potatoes?
a) KCl b) KNO3
c)
K2SO4 d)
KMnO4
26.
Calcarious material
includes___________
a)
Lime stone b) Marble
c)
Chalk d)
All of the above
27.
Argillaceous material does
not include____________
a)
Clay b)
Marine shells
c)
Slated d)
Blast furnace slag
28.
Which of the following
processes is used for the synthesis of cement?
a)
Dry process b)
Wet process
c)
Both d)
None
29.
Phosphorus helps in the
growth of ________
a)
Root b)
Leave
c)
Stem d)
Seed
30.
How many zones through
which the charge passes in a rotary kiln?
a)
4 b)
3
c) 2 d)
5
31.
The nutrients which are
required in very small amount for the growth of plants are called.
a.
Nitrogenous fertilizers
b.
Micronutrients
c.
Phosphorus fertilizer
d.
Surfactant
32.
Which one of the following
set of raw material is most suitable for manufacture of urea?
a)
CH4, N2
and CO2 b)
H2, N2 and CO
c)
H2, CO2 and H2O d) H2O, N2 and H2
33.
Which one of the following
statement is correct for urea?
a.
It is a synthetic
fertilizer
b.
It is a natural fertilizer
c.
It provides micronutrients
to plants
d.
It is an inorganic water
soluble compound
34.
Which on the following is
an inorganic fertilizer?
a)
36% b)
46%
c)
56% d)
66%
35.
Which one of the following
is an inorganic fertilizer?
a)
Manure b)
Urea
c)
Ammonium nitrate d) All
36.
There is only one nitrogen
fertilizer which is used as liquid is
a)
NH4NO3 b)
NH4Cl
a)
NH3 d)
(NH4)2HPO4
37.
Except Ca(NO3)2,
NaNO3 and KNO3, all nitrogen fertilizers make the soil
a)
Acidic b)
Basic
c)
Neutral d)
None of these
38.
Which fertilizer contain
82% nitrogen?
a)
NH4NO3 b)
KNO3
c)
NH4Cl d)
NH3
39.
NH4NO3
is used as fertilizer for most crops except
a)
Potato b)
Sugarcane
c)
Paddy rice d)
Tobacco
40.
The percentage of nitrogen
in urea is
a)
40% b)
46%
c)
48% d)
50%
41.
Potassium fertilizers are
used for
a)
Fruits b)
Vegetable
c)
Tobacco d)
All of these
42.
From which of the following
natural fiber is obtained?
a)
Animal b)
Vegetable
c)
Mineral d)
All of these
43.
The percentage of nitrogen
in ammonia nitrate is
a)
46% b)
33 – 33.5%
c)
82% d)
48%
44.
NH4NO3
is used as a fertilizer for many crops except paddy rice because
a) Its granules are solid
b) It is poisonous
c) It is neutral
d) The microbial bacteria in flooded field decompose NH4NO3
into N2 gas
45.
Manufacturing of super
phosphate fertilizer involves
a)
Six steps b)
Five steps
c)
Four steps d)
Three steps
46.
The percentage of P2O5
in triple super phosphate fertilizer is
a) 45
– 46% b)
46 – 48%
c) 33
– 35% d)
40%
47.
The percentage of nitrogen
in ammonium sulphate is
a)
21% b)
25%
c)
46% d)
82%
48.
The Stoichiometric ration
of CO2/NH3 conversion to urea is about
a)
50% b)
55%
c)
60% d)
65%
49.
The chief strength
producing constituents of cement is
a) Lime
b) MgO
c) Tricalcium silicate (3CaO.SiO2)
d) All of these
50.
Clinker is produced by
a)
Wet method b) Dry method
c)
Bayer’s method d) Both a &
b
51.
The final product which is
obtained from the rotary kiln (cement production) is called
a)
Clinker b)
Pulp
c)
Fiber d)
Polymer
52.
The separation of cellulose
fibers by mechanical method or by various chemicals from the matrix result into
a)
Clinker b)
Pulp
c)
Polymer d)
Isomer
53.
The industrial abbreviation
of Tricalcium aluminate is
a) C2S b)
C3S
c) C3A d)
C4AP
54.
Super phosphate fertilizer
is formed by the
a) Acylation of phosphate rock
b) Alkylation of phosphate rock
c) Acidulation of phosphate rock
d) Aromatization of phosphate rock
55.
Natural fertilizers are
materials derived from
a)
Plants b)
Animals
c)
Algae d)
All of these
56.
The fertilizers, which
provide single nutrient from NPK, are called _____ fertilizers.
a)
Straight b)
Compound
c)
Both a & b d)
None
57.
The substances added to the
soil in very small amounts (about 6 grams to 200 grams
per acre)
are called _______
a)
Macronutrients b) Micronutrients
c)
Fertilizers d)
None of these
58.
A natural fertilizer
provide about ______ kg of nitrogen.
a)
4.5 b)
3.2
c)
2.2 d)
1.5
59.
A natural fertilizer
provides ______ kg of P2O5
a)
4.5 b)
3.2
c)
2.2 d)
1.5
60.
The percentage of nitrogen
in ammonium sulphate is _______
a)
32 – 33.5 b)
50 – 55
c) 80
– 82 d)
20 – 25
61.
The percentage of sulphur
in ammonium sulphate is ______ %.
a)
25 b)
21
c)
23 d)
19
62.
Ammonium nitrate is sold as
a mixture with
_________
a)
Soda Ash b)
Limestone
c)
Zinc d)
None of these
63.
Any material, which changes
the cleaning
effect
of water is called _______
a)
Fertilizers b)
Detergent
c)
Acid d)
None of these
64.
Commercial detergents
contain mainly ______
a)
RCOON b)
RONa
c)
RSNa d)
ROSO3Na
65.
The principle former of
almost all glasses is
________
a)
(SiO2)n b)
(SiO3)n
c)
(SiO2)X d)
None of these
66.
Calcarious material
includes ________
a)
Lime stone b)
Marble
c)
Chalk d)
All of the above
67.
Cement is a mixture of so
many compounds roasted in rotary kiln. Which substances has greater
percentage?
a)
Lime (CaO) b) Silica (SiO2)
c)
Alumina (Al2O3) d)
Magnesia (MgO)
68.
The important function of
burning zone in the
rotary
kiln is ______
a) To dry the moisture of slurry
b) To decompose lime stone to unslaked lime
c) Combination of different oxides like CaO2, SiO2, Fe2O3
and Al2O3.
d) To reduce the impurities
69.
Asbestos is a _______
a)
Mineral fiber b) Animal fiber
c)
Vegetable fiber d) None of these
Sir ans these questions plz
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ReplyDeletewhy havent you share the answers of it??
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