H2S is scrubbed from refinery gases by absorption using
(A) Dilute H2SO4
(B) Ethanol amine
(C) Chilled water
(D) Tri-butyl phosphate

1 Answer

Answer :

(B) Ethanol amine

Related questions

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 : Pick out the wrong statement. (A) Dehydration of ammonium carbamate to produce urea is endothermic (B) Direct use of liquid ammonia as a fertiliser for a tropical country like India ... manufacture of ortho-phosphoric acid (D) Phosphate rock when reacted with dilute H2SO4 produces superphosphate

Last Answer : (B) Direct use of liquid ammonia as a fertiliser for a tropical country like India is suitable

Description : Phosphoric acid is produced in wet process from phosphate rock and (A) Dilute H2SO4 (B) Concentrated H2SO4 (C) Concentrated NHO3 (D) Concentrated HCl

Last Answer : (A) Dilute H2SO4

Description : Biosynthesis of Triglyceride and Lecithine both require an intermediate: (A) Monoacyl glycerol phosphate (B) Phosphatidic acid (C) Phosphatidyl ethanol amine (D) Phosphatidyl cytidylate

Last Answer : Answer : B

Description : Absorption with chemical reaction' is involved in the removal of (A) Carbon dioxide from gaseous stream using alkaline solution (B) Benzol from coke oven gas using solar oil/wash oil (C) Ammonia ... gas using refrigerated water (D) Tar from coke oven gas in primary gas coolers using chilled water

Last Answer : (A) Carbon dioxide from gaseous stream using alkaline solution

Description : Ethanol amine is produced using ammonia and (A) Ethyl benzene (B) Ethylene oxide (C) Ethanol (D) Ethane

Last Answer : (B) Ethylene oxide

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 : Which of the following is a suitable absorbent for removal of H2S from natural gas? (A) Vetrocoke solution (B) Monoethanolamine (MEA) (C) Dilute (D) Hot water

Last Answer : (B) Monoethanolamine (MEA)

Description : Tertiary butyl amine is a-

Last Answer : Tertiary butyl amine is a- A. `1^(@)` Amine B. `2^(@)` Amine C. `3^(@)` Amine D. Quaternary salt

Description : . In industrial nomenclature, alcohol means (A) Butyl alcohol (B) Propyl alcoho (C) Ethanol (D) Methyl alcohol

Last Answer : (C) Ethanol

Description : During the process of isolation of DNA, chilled ethanol is added to (a) precipitate DNA (b) break open the cell to release DNA (c) facilitate action of restriction enzymes (d) remove proteins such as histones.

Last Answer : a) precipitate DNA

Description : DNA precipitation out of a mixture of biomolecules can be achieved by treatment with (a) chilled chloroform (b) isopropanol (c) chilled ethanol (d) methanol at room temperature.

Last Answer : (c) chilled ethanol

Description : The major use of sulphur is in the manufacture of – (1) H2SO4 (2) H2S (3) SO2 (4) Fungicide

Last Answer : (1) H2SO4 Explanation: The major use of sulphur is in the manufacture of sulphuric acid (H2SO4) which is one of the most important compounds made by the chemical industry. It is used to make, literally, hundreds of compounds needed by almost every industry.

Description : Thermal pyrolysis of ethylene dichloride produces (A) Trichloroethylene (B) Vinyl chloride (C) Ethanol amine (D) Ethylene oxid

Last Answer : (B) Vinyl chloride

Description : Thermal pyrolysis of ethylene dichloride produces (A) Trichloroethylene (B) Vinyl chloride (C) Ethanol amine (D) Ethylene oxide

Last Answer : (B) Vinyl chloride

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

Last Answer : (B) Acetic acid

Description : Leaching of sugar from sugar beets is done by (A) Hot water (B) Hexane (C) Dilute H2SO4 (D) Lime water

Last Answer : (A) Hot water

Description : Leaching of coffee from coffee beans is done by (A) Hot water (B) Hexane (C) Lime water (D) Dilute H2SO4 (hot)

Last Answer : (A) Hot water

Description : Which of the following has the lowest Prandtl number? (A) Molten sodium (a coolant used in fast breeder reactor) (B) Water (C) Transformer oil (D) Dilute H2SO4

Last Answer : (A) Molten sodium (a coolant used in fast breeder reactor)

Description : Glass lined vessels are not used for handling (A) Dilute H2SO4 (B) Dilute HNO3 (C) Dilute HCI (D) Hydrofluoric acid

Last Answer : (D) Hydrofluoric acid

Description : Glass lined vessels are not used for handling/storing (A) Dilute H2SO4 (B) Dilute HNO3 (C) Dilute HCl (D) Hydrofluoric acid

Last Answer : (D) Hydrofluoric acid

Description : Centrifugal pump made of pyrex or glass can't be used to pump (A) Milk and fruit juices (B) Alkaline solutions (C) Dilute H2SO4 at room temperature (D) Brine

Last Answer : (B) Alkaline solutions

Description : Flushing liquor used for cooling coke oven gas constitutes of (A) Ammoniacal liquor (B) K2CO3 solution (C) Dilute H2SO4 (D) Dilute HCl

Last Answer : (A) Ammoniacal liquor

Description : The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is (A) Dilute H2SO4 (B) Oleum (C) Ultraviolet light (D) None of these

Last Answer : (B) Oleum

Description : Tri-sodium phosphate is used in boiler water treatment to reduce (A) Turbidity (B) Caustic embrittlement (C) Suspended silica (D) Dissolved oxygen

Last Answer : (B) Caustic embrittlement

Description : Sodium tri poly phosphate (STPP) is manufactured by reaction of phosphoric acid with sodium (A) Carbonate (B) Phosphate (C) Bicarbonate (D) Silicate

Last Answer : (A) Carbonat

Description : Sodium tri poly phosphate (STPP) is chemically represented as (A) Na5P3O10 (B) Na4P3O8 (C) Na3P4O6 (D) Na2PO4

Last Answer : (A) Na5P3O10

Description : Tetra hydroglolate can be freed from N5 methyl tetrahydrofolate only by (A) Nor epinephrine (B) Ethanol amine (C) Nicotinamide (D) Vitamin B12

Last Answer : Answer : D

Description : Why does not silver evolve h2 on reacting with dilute h2so4?

Last Answer : Need answer

Description : Which of the following reagents will react with furan to form 2-furansulfonic acid? (a) SO3 in pyridine at 100°C (b) Dilute H2SO4 at 200°C (c) SO2 at 100°C (d) Dilute H2SO4 at 100°C

Last Answer : SO3 in pyridine at 100°C

Description : A compound, C4H6, reacts with bromine and forms a white precipitate with ammoniacal silver nitrate solution. It reacts with dilute H2SO4 in the presence of mercuric sulfate to form 2-butanone. The compound could be (a) 1-Butyne (b) 1-Butene (c) 2-Butyne (d) 2-Butene

Last Answer : 1-Butyne

Description : In a furnace operation, which is not preheated? (A) Solid fuels (B) Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.) (C) Both (A) and (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) and (B)

Description : Which of the following is a rich fuel gas? (A) Producer gas (B) Coal gas from underground gasification of coal (C) Refinery gases (D) None of these

Last Answer : (C) Refinery gases

Description : When ethanol is heated with concentrated H2SO4, a gas is produced. Which of the following compounds is formed when this gas is treated with bromine in CCl4?E2 (a) Bromomethane (b) 1,2-Dibromoethane (c) Bromoethane (d) 1,1,2,2-Tetrabromoethane

Last Answer : 1,2-Dibromoethane

Description : Ethanol on heating with concentrated H2SO4 at 170°C gives (a) ethylene (b) ethyl hydrogen sulfate (c) diethyl ether (d) diethyl sulfate

Last Answer : ethylene

Description : Ethanol containing 5% water is known as – (1) Dilute alcohol (2) Power alcohol (3) Rectified spirit (4) Absolute alcohol

Last Answer : (3) Rectified spirit Explanation: A rectified alcohol is highly concentrated ethanol which' has been purified by means of repeated distillation, a process that is called rectification. It typically contains 95% alcohol by volume and 5% water. Normally, ethanol with 5% water is known as pure alcohol.

Description : Ethanol containing 5% water is known as : (1) Dilute alcohol (2) Power alcohol (3) Rectified spirit (4) Absolute alcohol

Last Answer :  Rectified spirit

Description : Can you use tri sodium phosphate to clean medium gloss painted walls?

Last Answer : um just buy paint thinner

Description : Write a note on ATP (Adenosine Tri-Phosphate). -Biology

Last Answer : answer:

Description : Hello, please there is no well-founded chemist who would know what would be created by mixing these substances, in approximately the given ratio: toluene 70%, ethanol 20%, gasoline 9.5% and potassium salt of ... its properties. Please advise how to dissolve it - and release it ... Thanks, Alfi.

Last Answer : go to the store, buy it all and try it .. then write how you ended up

Description : Reaction of phosphate rock with 98% H2SO4 produces (A) Ortho-phosphoric acid (B) Superphosphate (C) White phosphorous (D) None of these

Last Answer : (A) Ortho-phosphoric acid

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 : Which filler can NOT be used for the preparation of tablets for amine containing basic drugs to avoid discoloration of the tablets? (A) Dicalcium phosphate (B) Microcrystalline cellulose (C) Starch (D) Lactose

Last Answer : (D) Lactose

Description : Absorption of SO3 in 97% H2SO4 is (A) Exothermic (B) Endothermic (C) Not possible (D) None of these

Last Answer : (A) Exothermic

Description : Which of the following is an endothermic reaction? (A) Absorption of SO3 in 98% H2SO4 (B) C + H2O = CO + H2 (C) Thermal dissociation of iron pyrites (D) Both (B) and (C)

Last Answer : (D) Both (B) and (C)

Description : Acetic acid will be most economically separated from a dilute solution of acetic acid in water by (A) Solvent extraction (B) Continuous distillation (C) Evaporation (D) Absorption

Last Answer : (A) Solvent extraction

Description : Rare gases are - (1) Mono atomic (2) di atomic (3) tri atomic (4) none of above

Last Answer : (1) Mono atomic Explanation: The so-called "rare" gases Neon (Ne), Krypton (Kr) and Xenon (Xe), are present in air in very low concentrations.

Description : The overall mass transfer co-efficient for the absorption of SO2 in air with dilute NaOH solution can be increased substantially by (A) Increasing the gas film co-efficient (B) Increasing the liquid film co-efficient (C) Increasing the total pressure (D) Decreasing the total pressure

Last Answer : (A) Increasing the gas film co-efficient

Description : In case of absorption, both the operating and equilibrium lines will be straight for (A) Isothermal operation (B) Dilute solutions (C) Dilute solutions and isothermal operation (D) None of these

Last Answer : (C) Dilute solutions and isothermal operation