Description : Fischer-Tropsch method aims at the (A) Gasification of coal (B) Synthesis of gasoline (from water gas) (C) Hydrogenation of coal to produce gasoline (D) None of these
Last Answer : (B) Synthesis of gasoline (from water gas)
Description : Which of the following does not gives Friedel-Crafts reaction ?
Last Answer : Which of the following does not gives Friedel-Crafts reaction ? A. B. C. D.
Description : In a Friedel-Crafts reaction, the electrophile is:
Last Answer : In a Friedel-Crafts reaction, the electrophile is: A. `Cl^(-) or X^(-)` B. `CH_(3)^(+)or CH_(3)CO^(+)` C. `CH_(3)Cl` D. `CH_(3)COCl`
Description : Benzene undergoes Friedel-Crafts reaction with isopropyl alcohol in the presence of H2SO4 catalyst to give (a) n-Propylbenzene (b) Benzophenone (c) Isopropylbenzene (d) Nothing happens
Last Answer : Isopropylbenzene
Description : _________ process is meant for direct hydrogenation of coal to produce liquid fuel. (A) Fischer-Tropsch (B) Bergius (C) Lurgi (D) None of these
Last Answer : (B) Bergius
Description : Catalyst used in Fischer-Tropsch process is (A) Nickel (B) Zinc oxide (C) Alumina (D) Thorium oxide
Last Answer : (A) Nickel
Description : Nickel is not used as a catalyst in the (A) Fischer-Tropsch process (B) Shift conversion (C) Hydrogenation of oil (D) Ostwald's process of HNO3 manufacture
Last Answer : (D) Ostwald's process of HNO3 manufacture
Description : The only commercial Fischer-Tropsch plant for producing liquid hydrocarbon fuel from coal is located at (A) SASOL (in South Africa) (B) Redcar (U.K.) (C) Los Angeles (U.S.A.) (D) Trombay (India)
Last Answer : (A) SASOL (in South Africa)
Description : What single isomer would be found in greatest yield when isopropyl chloride undergoes a Friedel-Crafts alkylation with t-butylbenzene ?
Last Answer : What single isomer would be found in greatest yield when isopropyl chloride undergoes a Friedel-Crafts ... o-isopropyl-t-butylbenzene D. none of these
Description : Which of the following reactions can be used to prepare alkanes? (a) Corey-House synthesis (b) Williamson synthesis (c) Friedel-Crafts reactions (d) None of these
Last Answer : Corey-House synthesis
Description : How is ammonia prepared? Write chemical reaction involved in the Haber’s process.
Last Answer : i) Ammonia is prepared by the combination of hydrogen and nitrogen in the ratio of 3:1. ii) The used catalyst is iron oxide. The promotors are potassium and aluminium oxides. iii) The required conditions are high pressure and moderate temperature. N2 + 3H2 → 2NH3
Description : Vapor phase reaction of ammonia & nitric acid to produce ammonium nitrate is termed as the __________ process. (A) Haber's (B) Stengel (C) Le-chatelier's (D) Du-pont's
Last Answer : (B) Stengel
Description : Catalytic ammonia synthesis reaction as in Haber's process is (A) Endothermic (B) Exothermic (C) Irreversible (D) None of these
Last Answer : (B) Exothermic
Description : Fisher-Tropsch process is used in the manufacture of which liquid? -Do You Know?
Last Answer : answer:
Description : Fisher-Tropsch process is used in the manufacture of which liquid?
Last Answer : Synthetic petrol
Description : Haber’s process is related to?
Last Answer : Ammonia (NH3)
Description : Haber’s process is used for the preparation of ………….
Last Answer : Haber’s process is used for the preparation of …………. a. HNO3 b. NH3 c. NH2CONH2 d. NH4OH
Description : What are the conditions for getting maximum yield of NH3 by Haber’s process?
Last Answer : Ans. High conc. Of N2 &H2, Low Temp. & High Pressure.
Description : Why it is necessary to remove CO when ammonia is obtained by Haber’s process?
Last Answer : Ans.: Because CO acts as poison for the catalyst in the manufacture of NH3 by Haber’s process.
Description : Which of the following set of conditions is favourable for the maximum yield of ammonia by Haber's process? (A) High pressure, low reactants concentration, high temperature (B) High ... , high reactants concentration, low temperature (D) Low pressure, high reactants concentration, low temperature
Last Answer : (C) High pressure, high reactants concentration, low temperature
Description : Catalyst used in the manufacture of NH3 by Haber's process is finely divided (A) Nickel (B) Iron (C) Vanadium pentoxide (D) Alumina
Last Answer : (B) Iron
Description : Catalyst used in Haber's process for ammonia production is (A) Reduced iron oxide (B) Nickel (C) Vanadium pentoxide (D) Silica gel
Last Answer : (A) Reduced iron oxide
Description : __________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia. (A) Solvay (B) Ostwald's (C) Haber's (D) None of these
Last Answer : (B) Ostwald's
Description : __________ process is used for the manufacture of sodium carbonate by ammonia soda process. (A) Ostwald's (B) Bosch (C) Solvay (D) Haber's
Last Answer : (C) Solvay
Description : What are optimum conditions for the formation of NH3 by Haber’s process? N2(g) + 3H2(g) 2NH3(g) H = -92.46 kJ/m
Last Answer : (i) As the reaction is exothermic max yield is obtained at low temp. (ii) By applying pressure, more product is obtained. According four moles of reactants produce two moles of product so by applying ... (vi) Rate of reaction can also be increase with the help of catalyst like iron or iron oxide.
Description : When aniline is heated with glycerol in the presence of sulfuric acid and nitrobenzene, it gives quinoline. This reaction in called (a) Fischer synthesis (b) Skraup synthesis (c) Diazotization (d) Corey-House synthesis
Last Answer : Skraup synthesis
Description : Though increased pressure has a retarding effect on cracking reaction, yet in actual process, a positive pressure of 10-15 kgf/cm2 is maintained during cracking mainly to (A) Increase the yield of ... coke formation (C) Enhance the octane number of gasoline (D) Reduce gum content in gasoline
Last Answer : (B) Suppress coke formation
Description : Pick out the wrong statement. (A) Alkylation produces a larger iso-paraffin (having higher octane number) from the reaction of an olefin with smaller iso-paraffin (B) Catalytic alkylation processes use HF ... (> 1000°C) (D) Gasoline having an octane number of 90 can be produced by alkylation process
Last Answer : (C) All the alkylation processes use very high temperature (> 1000°C)
Description : Can you believe that Bryan Fischer actually says that he's NOT homophobic?
Last Answer : I think it is either he is homophobic or he is an asshat. Those are your only two choices. Pick one.
Description : Martin Fischer said "Whenever ideas fail, men invent words" - thoughts?
Last Answer : In order to express an idea one must put it into words. Whether or not the idea needs to be expressed is another thing altogether.
Description : What links the names Botvinik, Tal, Karpov, Fischer?
Last Answer : Chess World Champs
Description : is a Fischer projection of one of_______ stereoisomers ?
Last Answer : is a Fischer projection of one of_______ stereoisomers ? A. 2 B. 4 C. 8 D. 12
Description : Fischer projection formula of this compound can be represented as :
Last Answer : Fischer projection formula of this compound can be represented as : A. B. C. D.
Description : Can a yellow collared lovebird and Fischer lovebird?
Last Answer : Not really
Description : Key and lock hypothesis of enzyme action was given by (A) Fischer (B) Koshland (C) Buchner (D) Kuhne
Last Answer : Answer : A
Description : ‘Lock’ and ‘Key’ theory was proposed by (A) Sorenson (B) Fischer (C) Mehler (D) Sanger
Last Answer : Answer : D
Description : The induced fit model of enzyme action was proposed by (A) Fischer (B) Koshland (C) Mitchell (D) Markert
Last Answer : Answer : B
Description : The 1992 Nobel Prize for medicine was awarded to Edmond H. Fischer and Edwin J. Krebs for their work concerning (a) reversible protein phosphorylation as a biological regulation mechanism (b) ... (c) human genome project (d) drug designing involving inhibition of DNA synthesis of the pathogen.
Last Answer : (a) reversible protein phosphorylation as a biological regulation mechanism
Description : Which of the following conditions will drive the equilibrium of the Fischer esterification towards ester formation? (a) addition of water (b) removal of water as it is formed (c) addition of alcohol (d) both (b) and (c)
Last Answer : both (b) and (c)
Description : Bobby Fischer
Last Answer : Bobby is the byname of Robert James Fischer, an American chess master who became the youngest grandmaster in history when he received the title in 1958. His youthful intemperance and brilliant playing drew the ... . In doing so, Fischer won the $156,000 victor's share of the $250,000 purse.
Description : Which of the following scientists was awarded the Nobel Prize in 1911 for the discovery of the radioactive elements, radium and polonium? w) John Dalton x) Dmitri Mendeleev y) Emil Fischer z) Marie Curie
Last Answer : ANSWER: Z -- MARIE CURIE
Description : What links the names Botvinik, Tal, Karpov, Fischer
Description : Could internal conversion or ultrafast internal conversion, be artificially started in humans and create Radioactivity?
Last Answer : I’m sorry without a better explanation of the terms to which you refer, I could not venture to offer a useful answer. Please clarify!
Description : Which is the first artificially synthesized Vitamin?
Last Answer : Vitamin C
Description : An element that does not occur in nature but can be produced artificially is-----? A. Plutonium (Answer) B. Uranium C. Radium D. Thorium
Last Answer : A. Plutonium (Answer)
Description : In the future, do you see artificially intelligent digital recreations of dead celebrities bring them back to life so they can once again perform and have careers?
Last Answer : Presley was a good performer, on stage he was electrifying When he was ill his fans got sick and moaned when he had died Elvis is dead To all you pimps making money on his name How do you speak, ... t see them build new careers'. I do see people going to make money over their dead bodies, though.
Description : Anyone know a good way to artificially age cedar?
Last Answer : I saw on HGTV where they lightly torched wood to age it and then lightly sanded it til it blended in. Then they sealed it with polyurethane.
Description : Why do many people hate on excellence and claim that, without exception, the elevated cost is created artificially for vanity alone?
Last Answer : answer:Do they? Is this a thing? I could take a stab at this, but it would be from a different angle. Some people might see a $1.5M price tag and chuckle - not because they don't think ... data. Instead, it's shit animated graphics and designed for people who apparently do not care about the data.