0% 0 Chemical Process Quiz 10 1 / 50 Sucrose content in the raw juice extracted from sugar cane is about __________ percent? 80 ? 85 1 ? 2 50 ? 60 15 ? 20 2 / 50 The basic constituent of vegetable oils is _____? Triglyceride Fatty acids Mono esters Fatty alcohol 3 / 50 The combustion reaction, C + O2 = CO2, is___________? Endothermic Autocatalytic None of these Exothermic 4 / 50 The function of gypsum addition during cement making is to__________? Decrease the cement setting rate Increase the density of cement Neither A. nor B. Both A. and B. 5 / 50 Temporary hardness of water can be removed by___________? Boiling Addition of lime Addition of alum (a coagulant) Filtration (through gravity sand filter) 6 / 50 Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the________? Car battery solution Water treatment Fertiliser manufacture Synthesis of oleum 7 / 50 The main component of Pyrex glass is_______? Lead Selenium Zinc Boron 8 / 50 The drug used in contraceptives is______? Methyl salicylate Mestranol Penicillin Sulfadiazine 9 / 50 Sudden temperature fluctuation does not affect pyrex glass, because of its ___________? Low co-efficient of expansion High co-efficient of expansion Both B. and (C) High melting point 10 / 50 The main use of activated carbon in water treatment is to control _____? Turbidity None of these Bacterial growth Taste and odour 11 / 50 Superior quality laboratory apparatus is made of the ______ glass having low thermal co-efficient of expansion & high chemical resistance? Flint Potash Soda Pyrex 12 / 50 Sucrose is a disaccharide consisting of______? Fructose and galactose Glucose and glucose Glucose and fructose Glucose and galactose 13 / 50 Sucrose is a___________? Disaccharide None of these Monosaccharide Polysaccharide 14 / 50 The basic difference between vegetable oils and fats is in their _____? Composition Density Physical state Chemical properties 15 / 50 Terylene is___________? Neither A. nor B. Both A. & B. Same as Dacron A polyester 16 / 50 Sulphuric acid completely saturated with sulphur trioxide is called__________? Concentrated sulphuric acid Sulphurous acid Dilute sulphuric acid Oleum 17 / 50 The major constituent of black liquor generated during paper manufacture is sodium_____? Carbonate Sulphate Hydroxide Bi-carbonate 18 / 50 Teflon is_____? An inorganic polymer Phenol formaldehyde Poly tetra-fluoro-ethylene (P.T.F.E.) A monomer 19 / 50 The chamber process is________? None of these Non-catalytic and operates only on pyrites Preferred over contact process for producing 98 to 100% H2SO4 and various oleums A batch process for directly producing high strength (98 to 100%) H2SO4 20 / 50 Sulphuric acid is mainly used in the ________ industry ? Paint Paper Steel Fertiliser 21 / 50 Sulphur removal by heating of pyrite ore in presence of air is called its ______? Reduction Roasting Calcination Smelting 22 / 50 Tall oil obtained as a by-product from the black liquor recovery is_________? A black, sticky & viscous liquid Used in the manufacture of greases, emulsions & soaps Composed mainly of rosin & fatty acids All A , B. & C. 23 / 50 Sulphur addition in soap is done to _______? Increase its cleansing action Cure pimples & dandruff Improve the soap texture Fasten lather formation 24 / 50 The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is __________? None of these Ultraviolet light Dilute H2SO4 Oleum 25 / 50 The ideal pulp for the manufacture of paper should have high ______ content? Both A. & B. Lignin None of these Cellulose 26 / 50 The most economical pulp for the production of newsprint would be the _______ pulp? Ground-wood Sulphate Sulphite Semi-chemical 27 / 50 The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about _________ cm2/gm? 1600 4000 800 8500 28 / 50 Sulphuric acid saturated with SO3 is called__________? Concentrated H2SO4 None of these Sulphurous acid Oleum 29 / 50 The manufacture of Kraft pulp is done by a/an __________ process? Neutral Alkaline Acidic None of these 30 / 50 The biochemical treatment applied to sewage effluents is a process of___________? Reduction Dehydration Polymerisation Oxidation 31 / 50 The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to_____? Avoid mechanical weakening of fibre Increase the cellulose content None of these Remove lignin by way of crystallisation 32 / 50 Temperature during hydrogenation of oil should not be more than 200?C, otherwise it will result in________? Pyrolysis of oil Hydrogen embrittlement All A, B. and C. Sintering of porous catalyst 33 / 50 The main product of high temperature carbonisation of coal is_______? Ammonia Phenol Tar Coke 34 / 50 Sugar content in sugarcane on cane basis is about ________ percent by weight ? 5 to 10 1 to 5 20 to 30 15 to 20 35 / 50 The major constituents of glass are______? Silica, alumina and clay Lime, clay and soda ash Sand, lime and soda ash Silica, alumina and soda ash 36 / 50 The amount of benzene present in pure Benzol is about ________ percent ? 50 70 90 30 37 / 50 The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is _______? Silica gel Platinum Nickel Alumina 38 / 50 The catalyst used in shift converter is_____? Silica gel Vanadium Alumina Nickel 39 / 50 The most commonly used substance to speed up the sedimentation of sewage is_____? Sulphuric acid Chlorine Lime Sodium bisulphite 40 / 50 Styrene-butadiene-rubber (SBR) as compared to natural rubber has_________? Greater amount of heat build-up under heavy loading Poorer tensile strength Poorer resistance to oxidation All A , B. and C. 41 / 50 The end bleaching agent used to move last traces of colour bodies from the pulp is ______? MgO Chlorine dioxide (ClO2) SO2 gas Mercaptans 42 / 50 The difference between saponification value and acid value is______? Called ester value None of these Always negative Constant for all fatty oils 43 / 50 Synthetic glycerine is produced from_____? Phenol Toluene Propylene Naphthalene 44 / 50 The main use of HCl is in the_____? Manufacture of cationic detergent Drilling of petroleum wells and pickling of steel sheets Treatment of spent fuel of nuclear reactor None of these 45 / 50 Systemic insecticides_________? Emit poisonous vapour Are stomach poisons Kill insects following external bodily contact Are absorbed throughout the plant 46 / 50 The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by__________? None of these Electrolytic reduction Electrolysis Electrolytic oxidation 47 / 50 The major use of butadiene is______? As a plasticiser for unsaturated polyester None of these As an anti-skinning agent in paint In the manufacture of synthetic rubber 48 / 50 The enzyme which converts starch into the disaccharides maltose is__________? Yeast Diastase Maltase None of these 49 / 50 The gasification reaction represented by, C + H2O = CO + H2, is a/an __________ reaction? Catalytic Exothermic Endothermic Autocatalytic 50 / 50 Synthesis gas is a mixture of___________? H2, CH4 and CO N2 and H2 CO2 and H2 CO and H2 Provide Your Information Your score is The average score is 0% LinkedIn Facebook Twitter 0% Restart quiz Send feedback Share on facebook Facebook Share on twitter Twitter Share on whatsapp WhatsApp PrevChemical Process Quiz 9 Chemical Process Quiz 11Next
