Lithopaneis
A. Explosive
B. White lead
C. Filter aid
D. ZnS (white pigment)
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Which of the following is an yellow pigment?
A. Titanium dioxide
B. Ferrous sulphate
C. Lead chromates
D. Zinc sulphides
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Which of the following is not an antibiotic?
A. Penicillin
B. Streptomycin
C. Tetracyclin
D. Quinine
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Which of the following is not an insecticide?
A. Hydrocyanic acid
B. Nicotine
C. Sodium flouride
D. Hexane
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Nylon 66 is so named because the
A. Average degree of polymerisation of the polymer is 1966
B. Number of carbon atoms between two nitrogen atoms are 6
C. Number of nitrogen atoms between two carbon atoms are 6
D. Polymer was first synthesised in 1966
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Low purity oxygen is used for
A. L.D. steel making
B. Cutting and welding of metals
C. Medicinal purposes
D. Chemical oxidation processes
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Which of the following is not a food additive?
A. Citric acid
B. Invertage
C. Benzoyl peroxide
D. Ammonium chloride
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Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury electrolytic cell. Which of the following is the anodic reaction?
A. Oxidation of Na+ ions
B. Oxidation of Cl- ions
C. Reduction of Na+ ions
D. Reduction of Cl- ions
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Which of the following sugars is the sweetest?
A. Glucose
B. Fructose
C. Sucrose
D. Lactose
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Concentration of sulphide ores is done usually by
A. Roasting
B. Smelting
C. Froth floatation
D. Electro magnetic separation
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Finely ground calcium aluminate & silicate is a/an
A. Cermet
B. Cement
C. Abrasive
D. Explosive
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Tall oil obtained as a by-product from the black liquor recovery is
A. A black, sticky & viscous liquid
B. Used in the manufacture of greases, emulsions & soaps
C. Composed mainly of rosin & fatty acids
D. All of the above
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Main use of hydrazine is
A. As a rocket fuel
B. In water treatment
C. As a disinfectant
D. As fire retardant
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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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Which of the following is not a raw material used for the manufacture of ordinary glass?
A. Iron oxide
B. Soda ash
C. Limestone
D. Silica
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Margarine is a/an
A. Fat
B. Explosive
C. Plasticiser
D. Rocket propellant
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Massecuite is
A. Used for paper making
B. Used as a cattle feed
C. Highly acidic in nature
D. None of these
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Cumene is the starting material for the production of
A. Benzoic acid
B. Phenol and acetone
C. Isoprene
D. Styrene
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Molasses is the starting material for the production of
A. Alcohol
B. Essential oil
C. Fatty acids
D. Massecuite
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Flexible foam (for mattresses) is usually made of
A. PVC
B. Silicone
C. Polyurethanes
D. Polyamides
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