Description : 2-Butyne undergoes catalytic hydrogenation in the presence of Lindlar's catalyst to give (a) 2-Butene (b) Butane (c) 1-Butene (d) 2-Methylpropene
Last Answer : 2-Butene
Description : Which of the following statements are false about benzene? (a) It is a planar molecule with bond angles 120°. (b) It is immiscible with water forming the lower layer. (c) It can be ... Ni catalyst. (d) It reacts with ethyl chloride in the presence of aluminium chloride to form ethylbenzene.
Last Answer : It is immiscible with water forming the lower layer
Description : Partial hydrogenation of vegetable oils in the presence of Ni catalyst at 200°C gives (a) Vanaspati ghee (b) Margarine (c) Both of these (d) None of these
Last Answer : Vanaspati ghee
Description : 2-Methyl-2-butene reacts with HBr in the presence of peroxide to give (a) A primary alkyl bromide (b) A secondary alkyl bromide (c) A tertiary alkyl bromide (d) A vicinal dibromide
Last Answer : A secondary alkyl bromide
Description : Which of the following alkenes reacts with HBr in the presence of a peroxide to give anti-Markovnikov's product? (a) 1-Butene (b) 2,3-Dimethyl-2-butene (c) 2-Butene (d) 3-Hexene
Last Answer : 1-Butene
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 : Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result in (A) Pyrolysis of oil (B) Sintering of porous catalyst (C) Hydrogen embrittlement (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Which of the following will give a negative test when treated with bromine in carbon tetrachloride? (a) Butane (b) 2-Butene (c) 1,3-Butadiene (d) 2-Butyne
Last Answer : Butane
Description : Benzene reacts with propene in the presence of H2SO4 catalyst to give (a) n-Propylbenzene (b) Benzophenone (c) Cumene (d) Nothing happens
Last Answer : Cumene
Description : Benzene reacts with H2 at 150°C at 30 atm in the presence of Ni catalyst to give (a) Cyclohexane (b) Cyclohexene (c) n-Hexane (d) No reaction occurs
Last Answer : Cyclohexane
Description : Acetic acid reacts with methyl alcohol in the presence of an acid catalyst to give (a) Methyl formate (b) Ethyl formate (c) Methyl acetate (d) Ethyl acetate
Last Answer : Methyl acetate
Description : Which of the following would have the highest boiling point? (a) 1-Butanol (b) Butane (c) 1-Butene (d) 1-Butyne
Last Answer : 1-Butanol
Description : Which of the following compounds contains a double bond? w) butene x) acetylene y) butane z) propane
Last Answer : ANSWER: W -- BUTENE
Description : 2-Bromobutane reacts alcoholic KOH to mainly give (a) 1-Butene (b) 2-Butene (c) 1-Butanol (d) 2-Butanol
Description : 1-Bromobutane reacts with alcoholic KOH to mainly give (a) 1-Butene (b) 2-Butene (c) 1-Butanol (d) 2-Butanol
Description : Which of the following compounds reacts with ammoniacal cuprous chloride to give a precipitate? (a) 1-Butene (b) 1-Butyne (c) 2-Butene (d) 2-Butyne
Description : 1,3-Butadiene reacts with bromine to mainly give (a) 3,4-Dibromo-1-butene (b) 4-Bromo-1-butene (c) 1,4-Dibromo-2-butene (d) 1-Bromo-2-butene
Last Answer : 1,4-Dibromo-2-butene
Description : 1-Butene reacts with Cl2 in H2O to give (a) 1-Chloro-2-butanol (b) 2-Chloro-2-butanol (c) 1-Chloro-1-butanol (d) 2-Chloro-1-butanol
Last Answer : 1-Chloro-2-butanol
Description : 2-Butene reacts with HBr to give (a) 1-Bromobutane (b) 2,3-Dibromobutane (c) 2-Bromobutane (d) 2,2-Dibromobutane
Last Answer : 2-Bromobutane
Description : Benzene reacts with chlorine in the presence of FeCl3 catalyst to form (a) Hexachlorobenzene (b) Chlorobenzene (c) Hexachlorocyclohexane (d) Benzyl chloride
Last Answer : Chlorobenzene
Description : Ethylene reacts with oxygen in the presence of silver catalyst at 300°C to form (a) Diethyl ether (b) Ethylene glycol (c) Ethyl alcohol (d) Ethylene oxide
Last Answer : Ethylene oxide
Description : Polymerisation (A) Produces i-octane from cracked gases containing i-butane and butene (B) Causes olefins to combine with each other (C) Causes aromatics to combine with each other (D) Is aimed at producing lubricating oil
Last Answer : (B) Causes olefins to combine with each other
Description : The reagent needed to convert 2-butyne to cis-2-butene is : (a) H2/Pt (b) H2/Lindlar’s catalyst (c) Li/NH3 (d) Na/NH3
Last Answer : H2/Lindlar’s catalyst
Description : Benzoyl chloride reacts with hydrogen in the presence of palladium and barium sulfate to give : (a) Benzyl alcohol (b) Benzaldehyde (c) Cinnamic acid (d) Benzophenone
Last Answer : Benzaldehyde
Description : Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale. (A) Nickel (B) Vanadium (C) Alumina (D) Iron
Last Answer : (B) Vanadium
Description : Hydrogenation of edible vegetable oils (A) Is an exothermic reaction (B) Increases their melting point (C) Is done in presence of nickel catalyst (D) All (A), (B) and (C)
Description : Which of the following reagents will react with methyl group rather than the benzene ring in methylbenzene? (a) Chlorine in the presence of uv light (b) CH3Cl in the presence of AlCl3 (c) CH3COCl in the presence of AlCl3 (d) Hydrogen in the presence of nickel
Last Answer : Chlorine in the presence of uv light
Description : Which of the cycloalkanes is not expected to have ring strain? (a) Cyclopropane (b) Cyclobutane (c) Cycloheptane (d) None of these
Last Answer : Cycloheptane
Description : Which of the following cycloalkanes is most reactive? (a) Cyclopropane (b) Cyclohexane (c) Cyclobutane (d) Cycloheptane
Last Answer : Cyclopropane
Description : Which of the following correctly ranks the cycloalkanes in order of increasing ring strain per methylene? (a) cyclopropane < cyclobutane < cyclohexane < cycloheptane (b) cyclohexane < ... < cyclobutane < cyclopentane < cyclopropane (d) cyclopentane < cyclopropane < cyclobutane < cyclohexane
Last Answer : cyclohexane < cyclopentane < cyclobutane < cyclopropane
Description : Which of the following agents is used in order to make benzene react with bromine to give bromobenzene? (a) Ultraviolet light (b) Fe catalyst (c) Nickel catalyst (d) Al2O3 catalyst
Last Answer : Fe catalyst
Description : The industrial process of producing ammonia by the reaction of nitrogen with hydrogen in the presence of catalyst is called?
Last Answer : Haber process
Description : How many monochlorinated isomers would result from the reaction of chlorine with n-butane in the presence of UV light? (a) 2 (b) 4 (c) 6 (d) 8
Last Answer : 2
Description : L.P.G. is mostly liquefied (1) hydrogen (2) Oxygen (3) butane (4) methane
Last Answer : (3) butane Explanation: Liquefied petroleum gas or liquid petroleum gas (LPG) is mostly propane (C3H8), or butane (C4H10). They are most commonly mixtures of these two hydrocarbon gases that ... northern hemisphere winter, the mixes contain more propane, while in summer, they contain more butane.
Description : Which of the following is the best fuel in terms of energy released per gram of fuel? (1) Hydrogen (2) Methane (3) Ethanol (4) Butane
Last Answer : (1) Hydrogen Explanation: The amount of energy released increases with the number of bonds present in the chemical substance or fuel. That is because each bond has a certain amount of energy stored in it therefore the more bonds ... KJ/g; Methane: 55.6 KJ/ g; Ethanol: 29.7 KJ /g; Butane: 49.6KJ/g.
Description : Domestic cooking gas consists mostly of (1) methane and ethane (2) liquefied butane and isobutene (3) hydrogen and acetylene (4) ethylene and carbon monoxide
Last Answer : (2) liquefied butane and isobutene Explanation: Domestic gas is another name for Liquefied Petroleum Gas (LPG). Varieties of LPG bought and sold include mixes that are primarily propane (C3H8), primarily ... propane and butane, depending on the season - in winter more propane, in summer more butane.
Description : Indane gas is a mixture of which gases? (1) butane and hydrogen (2) butane and propane (3) butane and oxygen (4) methane and oxygen
Last Answer : (2) butane and propane
Description : L.P.G. is mostly liquefied (1) hydrogen (2) oxygen (3) butane (4) methane
Last Answer : butane
Last Answer : Hydrogen
Description : Domestic cooking gas consists mostly of (1) methane and ethane (2) liquified butane and isobutane (3) hydrogen and acetylene (4) ethylene and carbon monoxide
Last Answer : liquified butane and isobutane
Description : What is the product when 3-heptyne reacts with the Lindlar catalyst? (a) 2-methyl-2-heptene (b) trans-3-heptene (c) cis-2-methyl-3-hexene (d) cis-3-hexene
Last Answer : cis-3-hexene
Description : Naphthalene undergoes reduction with H2 in the presence of Ni catalyst at high temperature and pressure to give (a) Phthalic acid (b) Decalin (c) Benzoic acid (d) Tetralin
Last Answer : Decalin
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 : Furan reacts with ammonia in the presence of alumina at 400°C to give (a) Pyridine (b) Furfural (c) Pyrrole (d) Furoic acid
Last Answer : Pyrrole
Description : Benzaldehyde reacts with acetic anhydride in the presence of sodium acetate at 180°C to give : (a) Mandelic acid (b) Cinnamic acid (c) Malonic acid (d) Benzoic acid
Last Answer : Cinnamic acid
Description : Nitrobenzene reacts with Br2 in the presence of FeCl3 to give (a) o-chloronitrobenzene (b) o-bromonitrobenzene (c) m-chloronitrobenzene (d) m-bromonitrobenzene
Last Answer : m-bromonitrobenzene
Description : Benzene reacts with concentrated HNO3 in the presence of concentrated H2SO4 to give nitrobenzene. This reaction is an example of (a) Electrophilic addition (b) Nucleophilic addition (c) Electrophilic substitution (d) Nucleophilic substitution
Last Answer : Electrophilic substitution
Description : Toluene reacts with chlorine in the presence of AlCl3 to give (a) o-Chlorotoluene (b) o- plus p-Chlorotoluene (c) m-Chlorotoluene (d) o- plus m-Chlorotoluene
Last Answer : o- plus p-Chlorotoluene
Description : Toluene reacts with bromine in the presence of uv light to give (a) m-Bromotoluene (b) Benzyl bromide (c) o-Bromotoluene (d) Benzoyl bromide
Last Answer : Benzyl bromide