At a given temperature, the equilibrium yield of SO3 obtained from the oxidation of SO2 is proportional to (where, P = pressure of the system)
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Refractory bricks having high thermal conductivity is desirable, when it is to be used in the
A. L.D. converter
B. Blast furnace
C. Rotary kiln
D. Recuperator
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Poly Vinyl Chloride (P.V.C.) is a __________ material.
A. Thermosetting
B. Thermoplastic
C. Fibrous
D. Chemically active
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Titanium dioxide is a/an __________ colour pigment.
A. White
B. Black
C. Yellow
D. Blue
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__________ is a thermosetting plastic.
A. Polyvinyl chloride
B. Polythene
C. Bakelite
D. Teflon
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__________ is a thermosetting plastic.
A. Polythene
B. Epoxy polymer
C. P.V.C.
D. Polystyrene
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Commercial production of Vanaspati is done by __________ of edible vegetable oils.
A. Hydrogenation
B. Oxidation
C. Hydrolysis
D. Hydrocracking
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Calcination of limestone is not done in a __________ kiln for producing lime.
A. Vertical shaft
B. Rotary
C. Fluidised bed
D. Fixed bed
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Free alkali in a toilet soap is __________ that in a laundary shop.
A. Less than
B. More than
C. Same
D. None of these
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Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.
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Polythene is a/an __________ polymerisation product.
A. Addition
B. Condensation
C. Thermosetting
D. None of these
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Pick out the wrong statement.
A. Chamber process of sulphuric acid manufacture produces pure acid of concentration < 80%
B. Contact process of sulphuric acid manufacture produces pure acid of concentration ≥ 98%
C. 75% oleum can be produced by distillation of 20% oleum
D. Contact process of sulphuric acid manufacture uses nickel as the catalyst
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Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.
A. Adsorbs
B. Oxidises
C. Reduces
D. Converts
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Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood.
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Consider the production of ammonia from methene and air as raw materials. The catalyst used are:
(i) __________ for steam reforming of methane and
(ii) __________ for ammonia synthesis.
A. (i) - Ni/Al2 O3 ; (ii) - Cu - ZnO/Al2 O3
B. (i) - Fe/Al2 O3 ; (ii) - Cu - ZnO/Al2 O3
C. (i) - Ni/Al2 O3 ; (ii) - Fe/Al2 O3
D. (i) - Fe/Al2 O3 ; (ii) - Ni/Al2 O3
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Pencillin is made employing __________ fermentation process.
A. Continuous
B. Aerobic batch
C. Anaerobic batch
D. None of these
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For the hydrogenation of oils (i) __________ is commonly used as catalyst and (ii) __________ is a catalyst poison.
A. (i) platinum (ii) sulphur
B. (i) palladium (ii) oxygen
C. (i) nickel (ii) sulphur
D. (i) nickel (ii) oxygen
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More than 100 percent of __________ is present in oleum.
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Fire clay is __________ refractory material.
A. A basic
B. An acidic
C. A neutral
D. Not a
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Pick out the wrong statement.
A. Catalytic hydrogenation of carbon monoxide produces methyl alcohol
B. In nylon-6, the number 6 represents the total number of carbon atoms in the ring
C. Raw materials for DDT manufacture are benzene and chlorine
D. Ethanolamines are produced by using ammonia and ethylene oxide as raw material
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