Description : The preferred material of construction for storage tanks for 98% sulphuric acid is (A) Aluminium (B) Lead (C) Stainless steel 316 (D) Mild steel
Last Answer : (B) Lead
Description : Acetaldehyde is produced by hydration of acetylene in a sulphuric acid solution of mercuric sulphate. Hydration tower is made of (A) Rubber lined mild steel (B) Lead lined mild steel (C) Aluminium (D) Cast iron
Last Answer : (A) Rubber lined mild steel
Description : Lead is poured into the joint between two- __________ pipes. (A) Mild steel (B) Concrete (C) Cast iron (D) Asbestos cement
Last Answer : (C) Cast iron
Description : Lead is poured into the joint between two __________ pipes. (A) Mild steel (B) Concrete (C) Cast iron (D) Asbestos cement
Last Answer : Option C
Description : The shafts are made of a. mild steel b. alloy steel c. copper alloys d. cast iron.
Last Answer : d. cast iron.
Description : Lead pipes are not safe for carrying drinking water because water containing dissolved oxygen attacks lead thereby forming poisonous Pb (OH)2 . Lead pipes are readily corroded by (A) Dilute HCI (B) Acetic acid (C) Concentrated H2SO4 (D) None of these
Last Answer : (B) Acetic acid
Description : Lead pipes are not safe for carrying drinking water, because water, containing dissolved oxygen attacks lead thereby forming poisonous Pb(OH)2 . Lead pipes are readily corroded by (A) Dilute HCl (B) Acetic acid (C) Concentrated H2SO4 (D) None of these
Description : ________ does not react with dilute hydrochloric acid but reacts with sulphuric acid and does not liberate hydrogen gas. a) iron b)copper c)gold d)zinc
Last Answer : b)copper
Description : Mild steel storage vessels are suitable for the storage of (A) Anhydrous ammonia (B) Fatty acids (C) Hydrochloric acid (95%) (D) Sulphuric acid (25%)
Last Answer : (A) Anhydrous ammonia
Description : For handling sulphuric acid of 95% strength, the suitable material of construction for pipes is (A) Stainless steel (B) Cast iron (C) Aluminium (D) Nickel
Last Answer : (B) Cast iron
Description : Bush bearings are made of (A) Mild steel (B) Phosphorous bronze (C) White metal alloys (D) None of these
Last Answer : (B) Phosphorous bronze
Description : Thermometer bulb & capillary in case of mercury filled pressure spring expansion thermometer is normally made of __________ as mercury does not amalgamate with it. (A) Copper (B) Copper alloys (C) Stainless steel (D) Monel
Last Answer : (C) Stainless steel
Description : The shaft are made of (a) Mild steel (b) alloy steel (c) Cooper alloys (d) Any of these
Last Answer : (d) Any of these
Description : Out of the following, the __________ pipe has the least corrosion resistance. (A) Mild steel (B) Copper (C) Cast iron (D) Wrought iron
Last Answer : D) Wrought iron
Description : Coke oven gas is stripped of its H2S and mercaptans content by (A) Absorption in wash oil (B) Adsorption on bog iron bed (C) Bubbling it through dilute sulphuric acid (D) Adsorption on silica gel
Last Answer : (B) Adsorption on bog iron bed
Description : Reaction of dilute sulphuric acid with phosphate rock produces (A) Phosphoric acid (B) Superphosphate (C) Triple superphosphate (D) Gypsum
Last Answer : (A) Phosphoric acid
Description : Sulphuric acid completely saturated with sulphur trioxide is called (A) Concentrated sulphuric acid (B) Oleum (C) Sulphurous acid (D) Dilute sulphuric acid
Last Answer : (A) Concentrated sulphuric acid
Description : In the Contact process of sulphuric acid manufacture, 98% acid cooler is made of (A) Stainless steel (B) Cast iron (C) Lead lined steel (D) Rubber lined steel
Description : Sulphur melting pit in the sulphuric acid plant is made of (A) Lead lined stainless steel (B) Cast iron (C) Steel or cement-brick lined (D) Hard wood
Last Answer : (C) Steel or cement-brick lined
Description : Sulphuric acid is mixed with ground phosphate rock (to produce phosphoric acid) in a steel digestor lined with (A) Acidic refractory (B) Rubber (C) Karbate (D) Lead or acid proof bricks
Last Answer : (A) Acidic refractory
Description : Sulphuric acid is mixed with ground phosphate rock (to produce phosphoric acid) in a steel digestor lined with (A) Acidic refractory (B) Rubber (C) Karbate (D) Lead or acid-proof bricks
Last Answer : (D) Lead or acid-proof bricks
Description : On being hit with a hammer, __________ will readily fracture. (A) Brass (B) Mild steel (C) Cast iron (D) Lead
Last Answer : C) Cast iron
Description : Which of the following materials may prove unsuitable for handling acetic acid (glacial & anhydrous) at 40°C? (A) Silicone rubber, teflon, porcelain and wood (B) Nickel, monel, stainless steel and graphite (C) Aluminium, copper, high silicon iron (D) Brass, cast iron, mild steel and tin
Last Answer : (D) Brass, cast iron, mild steel and tin
Description : For platinum thermocouples, lead wires are made of (A) Copper & copper-nickel alloys (B) Copper & iron (C) Iron & nickel (D) Tin & nickel
Last Answer : (A) Copper & copper-nickel alloys
Description : Muntz metal is a/an alloys of (A) Magnesium & tin (B) Ferrous material (C) Lead & tin (D) Copper & zinc
Last Answer : (D) Copper & zinc
Description : Which of the following is not used as a bearing material? (A) Copper-lead alloys (B) Babbitts (C) Bronzes (D) Cermets
Last Answer : Option D
Description : Ammonium chloride solution is stored/ treated in __________ vessels/pipes. (A) Plain carbon steel (B) Stainless steel (C) Rubber or durmet-20 lined (D) Lead
Last Answer : (C) Rubber or durmet-20 lined
Description : Lead is poured into the joints between two __________ pipes. (A) Cast iron (B) Steel (C) Concrete (D) Plastic
Last Answer : (A) Cast iron
Description : Mild steel is used for (A) Structural works in beams, joints and girders (B) Small sized water pipes (C) Columns and struts (D) None of these
Last Answer : Answer: Option A
Description : Write the molecular formulae of: 1. Copper oxide 2. Iron (III) chloride 3. Sodium hydroxide 4. Iron (II) sulphide 5. Lead (II) oxide 6. Hydrogen nitrate (nitric ... Hydrogen sulphate (sulphuric acid) 8. Calcium hydroxide 9. Magnesium carbonate 10.Ammonium carbonate
Last Answer : 1. Copper oxide - CuO 2. Iron (III) chloride - FeCl3 3. Sodium hydroxide - NaOH 4. Iron (II) sulphide - FeS 5. Lead (II) oxide - PbO 6. Hydrogen nitrate (nitric acid) - HNO3 7. ... ) - H2SO4 8. Calcium hydroxide - Ca(OH)2 9. Magnesium carbonate - MgCO3 10.Ammonium carbonate - (NH4)2CO3
Description : Write balanced chemical equations for the following reactions: (a) Dilute sulphuric acid reacts with aluminium powder. (b) Dilute hydrochloric acid reacts with sodium carbonate. (c) Carbon dioxide is passed through lime water. -Chemistry
Last Answer : i hope it helped you
Description : When concentrated sulphuric acid awas treated with potassium ferrocyanide, CO gas was evolved. By mistake, somebody used dilute sulphuric acid instead
Last Answer : When concentrated sulphuric acid awas treated with potassium ferrocyanide, CO gas was evolved. By mistake, somebody used ... C. `N_(2)` D. `CO_(2)`
Description : How do you prepare dilute sulphuric acid?
Last Answer : 20 ml 2 normal dilute sulphuric acid means?
Description : What do you observe when (a) dilute sulphuric acid is added to granulated zinc?
Last Answer : Zinc reacts with dilute sulphuric acid to produce effervescence and hydrogen gas is evolved.
Description : Which of the following acid is also known as vinegar? (a) Dilute hydrochloric acid (b) Dilute sulphuric acid (c) Dilute acetic acid (d) Dilute tartaric acid
Last Answer : (c) Dilute acetic acid
Description : Which one of the following is commonly used for pulp bleaching in the paper industry? (1) Mild sulphuric acid (2) Glucose isomerase (3) Hydrogen peroxide (4) Iodine and water
Last Answer : (3) Hydrogen peroxide Explanation: Bleaching of wood pulp is the chemical processing carried out to decrease the color of the pulp, so that it becomes whiter. Alkaline hydrogen ... responsible for absorbing visible light. The decomposition of hydrogen peroxide is catalyzed by transition metals.
Last Answer : Hydrogen peroxide
Description : __________ plant emits large amount of SO2 as an air pollutant. (A) Nitric acid (B) Sulphuric acid (C) Chlor alkali (D) Iron & steel
Last Answer : (B) Sulphuric acid
Description : . Sulphuric acid is mainly used in the __________ industry. (A) Fertiliser (B) Steel (C) Pap (D) Paint
Last Answer : (A) Fertiliser
Description : Locomotive boiler tubes are made of __________ alloys. (A) Arsenic copper (B) Magnesium (C) Aluminium (D) Nickel
Last Answer : (A) Arsenic copper
Description : Spark plugs, ignition tubes and electrodes are made of nickel __________ alloys. (A) Beryllium (B) Manganese (C) Copper (D) Iron
Last Answer : (B) Manganese
Description : Nickel base alloys with __________ are known as monel metal. (A) Zinc (B) Tin (C) Copper (D) Molybdenum
Last Answer : (C) Copper
Description : H2SO4 (< 50% concentration) is corrosive to (A) Aluminium, mild steel, stainless steel, concrete & tin (B) Copper, cast iron & high silicon iron (14% Si) (C) Rubber (butyl and hard), silicone rubber & Teflon (D) Glass, graphite, porcelain & stoneware
Last Answer : (A) Aluminium, mild steel, stainless steel, concrete & tin
Description : The 'bomb' in the bomb calorimeter is made of (A) Molybdenum stainless steel (B) Mild steel (C) High silicon iron (14% Si) (D) Copper
Last Answer : (A) Molybdenum stainless steel
Description : Which of the following material of construction may be recommended by a chemical engineer for handling a gaseous chlorine (dry or wet) stream in a fluid flow system? (A) High silicon iron, silicon rubber ... Mild steel and stainless steel (C) Cast iron, tin and aluminium (D) Copper, nickel and Monel
Last Answer : (A) High silicon iron, silicon rubber, Kel-F and Teflon
Description : Pick out the wrong statement. (A) Seam welding, projection welding & spot welding are the classification of electrical resistance welding (B) Electrode tip in spot welding is of copper and the ... joined are overlapped and placed between two electrodes (D) Mild steel sheet cannot be spot welded
Last Answer : (D) Mild steel sheet cannot be spot welded
Description : The joint for soldering is supported by binding wire made of (A) Mild steel (B) Copper (C) Soft iron (D) Stainless steel
Description : __________ alloys have the highest specific strength of all the structural materials out of the following. (A) Magnetic steel (B) Titanium (C) Chromium (D) Magnesium
Last Answer : (B) Titanium
Description : Pick out the wrong statement. (A) Alloys are harder than their component elements (B) Presence of silicon in steel decreases its electrical resistance (C) Karbate is an acid resistant material of construction ... , a steel alloyed with 10% Ni and 20% Cr can be used upto a temperature of 1100°C
Last Answer : (B) Presence of silicon in steel decreases its electrical resistance
Description : The coefficient of static friction will have the highest value in case of a.Mild steel and mild steel b.Mild steel and copper c.Cast iron and steel d.Rope and wood e.Any of the above loctions
Last Answer : d. Rope and wood