Related Questions
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__________ process is used for producing soda ash.
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Zeolite used in water softening process (cation exchange) is regenerated by washing with
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4
BHC (Benzene hexachloride) is made by the chlorination of benzene
A. Which is an addition reaction
B. Which is a substitution reaction
D. In presence of sunlight
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4
Argon is the third largest constituent of air (followed by N2 & O2). Its percentage by volume in air is
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4
The basic difference between vegetable oils and fats is in their
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Which of the following is an additional step in the manufacture of paper from bagasse as compared to that from bamboo?
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Glycerine is a by-product of the __________ industry.
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4
Pick out the wrong statement.
A. Low intensity explosives are also called propellants, whereas high intensity explosive are called detonators
B. Gun powder comprises of 75% salt petre, 15% charcoal and 10% sulphur
C. Lead azide is a popular military explosive
D. TNT is a hygroscopic explosive having very high melting point and is non-toxic to human being
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Calcareous & argillaceous materials are used in the manufacture of
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The process used for the manufacture of ethyl alcohol from molasses is
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Concentration of hydrogen peroxide is done by
B. Vacuum crystallisation
C. Atmospheric distillation
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Transportation of 35% oleum during winter suffers from the problem of freezing, which can be overcome by the addition of small quantity of
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Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent.
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4
Yeast is used in the manufacture of
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More than 100 percent of __________ is present in oleum.
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__________ acid is the main constituent of cotton seed oil.
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Cement mainly contains
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Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C.
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Nitric acid is not used in the manufacture of
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__________ is a thermosetting plastic.
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Which is the main reducing agent during production of iron from iron ore in a blast furnace?
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4
Which of the following is a detergent?
B. Alkyl benzene sulphonate
C. Polytetrafluoroethylene
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4
Fusion of bauxite and __________ produces high alumina cement.
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4
Deaeration of water in its treatment is necessary, as it
A. Minimises its turbidity
B. Helps in controlling its taste and odour
C. Minimises its corrosiveness
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Consider the production of ammonia from methene and air as raw materials. The catalysts used are:
(i) __________ for steam reforming of methane and
(ii) __________ for ammonia synthesis.
A. (i) - Ni/Al2O3; (ii) - Cu - ZnO/Al2O3
B. (i) - Fe/Al2O3; (ii) - Cu - ZnO/Al2O3
C. (i) - Ni/Al2O3; (ii) - Fe/Al2O3
D. (i) - Fe/Al2O3; (ii) - Ni/Al2O3
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Frasch process is for
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Major component of flint glass is
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In the manufacture of sulphuric acid from elemental sulphur, the following sequence of major operations is followed:
A. Furnace → converter → absorber
B. Furnace → evaporator → absorber
C. Furnace → converter → evaporator
D. Converter → furnace → absorber
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4
Lubricating greases are a mixture of
A. Mineral oil, soap and additives
B. Mineral oil and metallic soap
C. Mineral oil and fatty oil
D. Fatty oil and metallic soap
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4
Coke used for the production of calcium carbide should have
B. Low ignition temperature
C. High electrical resistivity