Description : Raw materials used for the manufacture of glass are – (1) sand, soda, limestone (2) sand, charcoal, soda (3) limestone, charcoal, sulphur (4) sand, sulphur, soda
Last Answer : (1) sand, soda, limestone Explanation: Quartz sand (silica) is the main raw material in commercial glass production. While fused quartz (primarily composed of SiO2) is used for some special ... over 1200 degree C (2192 degree F). Normally, other substances are added to simplify processing.
Description : Raw materials for 'Solvay Process' for manufacture of the soda ash are (A) Salt, limestone and coke or gas (B) Ammonia, salt and limestone (C) Ammonia limestone and coke (D) None of these
Last Answer : (A) Salt, limestone and coke or gas
Description : 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
Last Answer : (A) Iron oxide
Description : Commercial production of calcium carbide requires limestone and __________ as raw materials. (A) Coke (B) Sand (C) Soda ash (D) Fuel oil
Last Answer : (B) Sand
Description : Commercial production of soda ash by Solvay process requires limestone, __________ as raw materials. (A) Coke and sand (B) Brine and coal (C) Coke and caustic soda (D) None of these
Last Answer : (B) Brine and coal
Description : Salt is the basic raw material for the manufacture of (A) Cement (B) Glass (C) Potteries (D) Caustic soda
Last Answer : (D) Caustic soda
Description : Bleaching powder is made from - (1) Sulphur dioxide and gypsum (2) Chlorine and Charcoal (3) Soda ash and lime (4) Lime and Chlorine
Last Answer : (4) Lime and Chlorine Explanation: The gas which is used in the preparation of bleaching powder is chlorine. It is a mixture of lime and calcium chloride.
Description : Gunpowder consits of a mixture of – (1) sand and TNT (2) TNT and charcoal (3) nitre, sulphur and charcoal (4) sulphur, sand and charcoal
Last Answer : (3) nitre, sulphur and charcoal Explanation: Gunpowder, also known since the late 19th century as black powder, was the first chemical explosive and the only one known until the mid-1800s. ... gunpowder has been widely used as a propellant in firearms and as a pyrotechnic composition in fireworks.
Description : Gunpowder consits of a mixture of (1) sand and TNT (2) TNT and charcoal (3) nitre, sulphur and charcoal (4) sulphur, sand and charcoal
Last Answer : nitre, sulphur and charcoal
Description : The raw materials used in glass manufacture are
Last Answer : soda ash, lime stone and sand.
Description : Name the raw materials required for the manufacture of glass.
Last Answer : a) Soda Ash (Na 2 CO 3 ) b) Lime stone (CaCO 3 ) c) Sand (SiO 2 ) d) Broken pieces of glass (Cullets)
Description : Which of the following is not required in the manufacture of soda ash by Solvay process? (A) Ammonia (B) Limestone (C) Nitric acid (D) None of these
Last Answer : (C) Nitric acid
Description : Which of the following materials are used in the manufacture of pig iron from iron ore? w) Limestone and carbon x) Calcium oxide and oxygen y) Chromium and nickel z) Oxygen and sulfur dioxide
Last Answer : ANSWER: W -- LIMESTONE AND CARBON
Description : Which of the following are alloying materials used the manufacture of stainless steel? w) Limestone and carbon x) Calcium oxide and oxygen y) Oxygen and sulfur dioxide z) Chromium and nickel
Last Answer : ANSWER: Z -- CHROMIUM AND NICKEL
Description : Sand and __________ is fused at 1300°C, to produce sodium silicate. (A) Limestone (B) Soda ash (C) Coke (D) Sodium sulphate
Last Answer : (B) Soda ash
Description : What are the raw material used for the manufacture of washing soda by solvay process ?
Last Answer : Ans. Nacl, CaCO3 and NH3
Description : Which is/ are the important raw materials in cement industry? (1) Limestone (2) Gypsum and Clay (3) Clay (4) Limestone and Clay
Last Answer : (4) Limestone and Clay Explanation: Limestone Claimed Clay Cement is a low-carbon alternative to the standard Portland cement. LC3 can reduce CO2 emissions related to cement manufacturing of cement by reducing the amount of clinker, replacing it with limestone and claimed clays.
Description : Gunpowder consists of a mixture of (a) potassium nitrate and TNT (b) Sulphur, sand and charcoal (c) nitre, Sulphur and charcoal (d) TNT and charcoal
Last Answer : Ans:(c)
Description : Which of the following is used for removing air bubbles from glass during its manufacture? (1) Fledspar (2) Arsenic oxide (3) Potassium Carbonate (4) Soda Ash
Last Answer : (2) Arsenic oxide
Description : Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH3 (A) HNO3 & limestone (B) CO2 & H2SO4 (C) HNO3 & NH4Cl (D) CO2 & KNO3
Last Answer : (A) HNO3 & limestone
Description : Limestone addition in the blast furnace is done to flux __________ present in the raw materials. (A) SiO2 (B) Al2O3 (C) MnO2 (D) P
Last Answer : Limestone addition in the blast furnace is done to flux __________ present in the raw materials. (A) SiO2 (B) Al2O3 (C) MnO2 (D) P
Description : The commonly used raw material in the manufacture of cement, is (A) Slate (B) Sand stone (C) Lime stone (D) Basalt
Last Answer : Answer: Option C
Description : What is a mixture of Potassium Nitrate Powdered Charcoal and Sulphur called? A. Paint B. Glass C. Gun Powder (Answer) D. Cement
Last Answer : C. Gun Powder (Answer)
Description : The gaseous product released during the manufacture of soda glass is
Last Answer : carbon dioxide.
Description : Dense soda ash used in the manufacture of glass, is chemically represented by (A) Na2CO3 (B) Na2CO3 .10H2O (C) Na2CO3 .H2O (D) Na2HCO3
Last Answer : (C) Na2CO3 .H2O
Description : __________ glass is used for the manufacture of optical glass. (A) Pyrex (B) Soda (C) Flint (D) Crooke's
Last Answer : (C) Flint
Description : Pick out the wrong statement. (A) For the manufacture of styrene, the major raw materials are benzene and ethylene (B) One important copolymer of styrene is SBR, which is widely ... D) Phenol manufacture by chlorobenzene-caustic process is competitive even when low cost chlorine is not available
Last Answer : (D) Phenol manufacture by chlorobenzene-caustic process is competitive even when low cost chlorine is not available
Description : What are the raw materials used in the manufacture of ceramics?
Last Answer : Clay like kaolinite and bentonite, Flint, White clay, Quartz and feldspar.
Description : Raw materials for nitric acid manufacture are (A) Hydrogen peroxide, air and water (B) Anhydrous ammonia and air (C) Anhydrous ammonia, air and water (D) Wet ammonia, air and water
Last Answer : (C) Anhydrous ammonia, air and water
Description : Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid. (A) Phthalic anhydride (B) Vinyl chloride (C) Maleic anhydride (D) Dacron
Last Answer : (B) Vinyl chloride
Description : 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 ... are benzene and chlorine (D) Ethanolamines are produced by using ammonia and ethylene oxide as raw material
Last Answer : (C) Raw materials for DDT manufacture are benzene and chlorine
Description : Pick out the wrong statement. (A) Kraft method of pulp manufacture can process all types of fibrous raw materials (B) Digestion time for bagasse is less than that for wood base materials (C) Both ... in case of the sulphite method as compared to that in the sulphate method (D) None of these
Last Answer : (D) None of these
Description : For the manufacture of Portland cement, the proportions of raw materials used, are (A) Lime 63% ; silica 22% ; other ingredients 15% (B) Lime 22% ; silica 63% ; other ingredients 15% (C) Silica 40% ; lime 40% ; other ingredients 20% (D) Silica 70% ; lime 20% ; other ingredients 10%
Last Answer : Answer: Option A
Description : The major constituents of glass are (A) Lime, clay and soda ash (B) Sand, lime and soda ash (C) Silica, alumina and clay (D) Silica, alumina and soda ash
Last Answer : (B) Sand, lime and soda ash
Description : Three basic raw materials which are needed in large quantities for production of steel are (A) Iron ore, coal and sulphur (B) Iron ore, carbon and sulphur (C) Iron ore, coal and lime stone (D) Iron ore, carbon and lime stone
Description : Limestone is a raw material used by which industry? (1) Aluminium (2) Fertilizers (3) Cement (4) Petrochemicals
Last Answer : (3) Cement Explanation: Limestone is used as a rawmaterial for the manufacture of quicklime (calcium oxide), slaked lime (calcium hydroxide), cement and mortar. Clay and shale are also used as raw materials for the production of cement.
Last Answer : Cement
Description : Mortar is a mixture of water sand and (1) Slaked lime (2) Quick lime (3) Limestone (4) Gypsum
Last Answer : (1) Slaked lime Explanation: Mortar is a workable paste used to bind construction blocks together and fill the gaps between them. The blocks may be stone, brick, cinder blocks, etc. Mortar becomes hard ... Mortar can also be used to fix, or point, masonry when the original mortar has washed away.
Description : Mortar is a mixture of water, sand and (1) Slaked lime (2) Quick lime (3) Limestone (4) Gypsum
Last Answer : Slaked lime
Description : What is a mixture of potassium nitrate powdered charcoal and sulphur called? (1) paint (2) aluminium (3) brass (4) gun powder
Last Answer : (4) gun powder Explanation: Gun powder is the mixture of potassium nitrate powdered charcoal and sulphur.
Description : State the uses (two each) of the following construction materials: i) Soda lime glass ii) Ferrous metal
Last Answer : i) Soda lime glass: a) Used in window and plate glass b) Glass blocks c) Bottles d) Inexpensive table wares e) Fluorescent and incandescent light bulbs ii) Ferrous metal: a) CI (Cast Iron) ... GI sheets f) Carbon steel is used for making tools g) Weld meshes are used for partition and fencing
Description : Raw materials used in the manufacturing of glass are–
Last Answer : Soda, Lime Stone Silica Sand ash
Description : How many of the following are metal carbonates : Dolomite ,Malachite ,Azurite ,Siderite Calamine , Magnasite ,Limestone ,Washing soda ,Cerussite
Last Answer : How many of the following are metal carbonates : Dolomite ,Malachite ,Azurite ,Siderite Calamine , Magnasite ,Limestone ,Washing soda ,Cerussite
Description : Rotary kilns are used in the (A) Calcination of limestone & dolomite (B) Cement manufacture (C) Both (A) and (B) (D) Neither (A) nor (B)
Last Answer : (C) Both (A) and (B)
Description : Limestone is added in the blast furnace (during pig iron manufacture) to (A) Form slag by combining with impurities (B) Supply heat by undergoing exothermic reaction with impurities (C) Reduce the coke consumption (D) Reduce slag viscosity
Last Answer : Option A
Description : Classify the following materials as metals and non-metals : Hydrogen, Sulphur, Selenium, Manganese, Calcium, Platinum, Gold, Silica, Polyester, Wood, Glass, Iron
Last Answer : Metals: calcium , manganese, platinum, gold , iron Non- metals: hydrogen, Sulphur, silica, polyester, wood, glass, selenium
Description : The contact process is involved in the manufacture of - (1) Nitric acid (2) Sulphuric acid (3) Ammonia (4) Caustic soda
Last Answer : (2) Sulphuric acid Explanation: It is also a central substance in the chemical industry. It is widely produced by contact process. Now days, sulphuric acid is prepared by contact process all over ... process is based upon the catalytic oxidation of sulfur dioxide (SO2) to sulfur trioxide (SO3).
Description : Explain the manufacture of Sodium Hydroxide (Caustic Soda), NaOH by castner kellner cell
Last Answer : Preperation--Sodium hydroxide is generally prepared commercially by the electrolysis of sodium chloride in Castner-Kellner cell. A brine solution is electrolysed using a mercury cathode and a carbon anode. Sodium ... The amalgam is treated with water to give sodium hydroxide and hydrogen gas.
Description : Carbon dioxide has each of the following uses except: w) refrigerant x) manufacture of baking soda y) fire extinguisher z) valuable reducing agent
Last Answer : ANSWER: Z -- VALUABLE REDUCING AGENT
Description : Quartz is a crystalline form of - (1) Alumina (2) Glass (3) Silica (4) Limestone
Last Answer : (3) Silica Explanation: Quartz is made up of a continuous framework of SiO4 silicon-oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall formula SiO2. Tridymite ... is a denser polymorph of quartz found in some meteorite impact sites and in metamorphic rocks.