Description : 2,3-Dimethyl-2-butene undergoes catalytic hydrogenation to give (a) 2,3-Dimethylbutane (b) 2-Methylpentane (c) 2,2-Dimethylbutane (d) 3-Methylpentane
Last Answer : 2,3-Dimethylbutane
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 : 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 : A hydrocarbon, C6H12, on ozonolysis gives only one product which does not give silver mirror with Tollens' reagent. The hydrocarbon is (a) 2,3-Dimethyl-2-butene (b) 2-Hexene (c) 2-Methyl-2-pentene (d) 3-Hexene
Last Answer : 2,3-Dimethyl-2-butene
Description : Which of the following alkenes will give a mixture of acetone and acetaldehyde an ozonolysis? (a) 1-butene (b) 2-methyl-2-butene (c) 2-butene (d) 2-methylpropene
Last Answer : 2-methyl-2-butene
Description : Which of the following alkenes will give a mixture of acetone and formaldehyde on ozonolysis? (a) 2-butene (b) 2-methyl-2-butene (c) 1-butene (d) 2-methylpropene
Last Answer : 2-methylpropene
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 : The major product of acid-catalyzed dehydration of 3-pentanol is : (a) 1-Pentene (b) 2-Methyl-1-butene (c) 2-Pentene (d) 3-Methyl-1-butene
Last Answer : 2-Pentene
Description : Which of the following compounds exhibit geometrical isomerism? (a) 1-Pentene (b) 2-Methyl-2-pentene (c) 2-Pentene (d) 2-Methyl-2-butene
Description : The hydrolysis of 2-bromo-3-methylbutane by `S_(N^(1))` mechanism gives meinly:
Last Answer : The hydrolysis of 2-bromo-3-methylbutane by `S_(N^(1))` mechanism gives meinly: A. 3-methyl-2- ... . 2,2-dimethyl-2-propanol D. 2-methyl-1-butanol
Description : A chiral `C_(5)H_(10)O` alcohol is reduced by catalytic hydrogenation to an achiral `C_(5)H_(12)O` alcohol. The original alcohol is oxidized by activa
Last Answer : A chiral `C_(5)H_(10)O` alcohol is reduced by catalytic hydrogenation to an achiral `C_(5)H_(12)O` alcohol ... -2-buten-1-ol D. 2-methyl-2-buten-1-ol
Description : Styrene which is a monomer for the production of polystyrene, is commercially produced by the (A) Catalytic dehydrogenation of ethyl benzene (B) Dehydration of ethyl alcohol followed by hydrogenation (C) Reacting ethylene oxide with acetaldehyde (D) Fermentation of starch
Last Answer : (A) Catalytic dehydrogenation of ethyl benzene
Description : Styrene (a monomer for the production of polystyrene) is commercially produced by (A) Catalytic dehydrogenation of ethyl benzene (B) Dehydration of ethyl alcohol followed by hydrogenation (C) Reacting ethylene oxide with acetaldehyde (D) Fermentation of starch
Description : The reaction of 1-butene with bromine, Br2, in aqueous solution gives primarily 1-bromo-2-butanol. Identify the nucleophilic species in the reaction. (a) Br2 (b) Br– (c) H2O (d) HOBr
Last Answer : H2O
Description : Which of the following alkenes gives only acetic acid on oxidation with hot concentrated KMnO4. (a) Ethylene (b) 1-Butene (c) Propene (d) 2-Butene
Description : The dehydrohalogenation of 2-bromobutane with alcoholic KOH gives mainly (a) 2-Butene (b) 2-Butyne (c) 1-Butene (d) 1-Butyne
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 : Consider the three isomeric alkanes n-hexane, 2,3-dimethylbutane, and 2- methylpentane. Which of the following correctly lists these compounds in order of increasing boiling point? (a) 2,3-dimethylbutane < 2- ... < 2, 3-dimethylbutane < n-hexane (d) n-hexane < 2-methylpentane < 2,3-dimethylbutane
Last Answer : 2,3-dimethylbutane < 2-methylpentane < n-hexane
Description : How many monochlorination products are possible in the reaction of 2,2- dimethylbutane with chlorine in the presence of ultraviolet light? (a) 2 (b) 3 (c) 4 (d) 5
Last Answer : 2
Description : Out of pentane, 2-methylbutane and 2,2-dimethylpropane which has the highest boiling point and why?
Last Answer : Ans. Pentane having a continuous chain of five carbon atoms has the highest boiling point (309.1K) whereas 2,2 - dimethylpropane boils at 282.5K. With increase in number ... and therefore weak intermolecular forces between spherical molecules, which are overcome at relatively lower temperatures
Description : Which of the alkyl chlorides listed below undergoes dehydrohalogenation in the presence of a strong base to give 2-pentene as the only alkene product? (a) 1-chloropentane (b) 2-chloropentane (c) 3-chloropentane (d) 1-chloro-2-methylbutane
Last Answer : 3-chloropentane
Description : Which compound is not an isomer of the other three? (a) n-Pentane (b) 2,2-Dimethylpropane (c) 2-Methylbutane
Description : The biogas used for cooking is a mixture of which of the following? (1) Carbon dioxide and oxygen (2) Isobutane and propane (3) Methane and Carbon monoxide (4) Methane and carbon dioxide
Last Answer : (4) Methane and carbon dioxide Explanation: Biogas is essentially a mixture of Methane (CH4, around 55-75%) but also contains Carbon Dioxide (CO3), around 25- 30%), varying quantities of Water ( ... ) and Carbon Monoxide (CO). Methane is the valuable component under the aspect of using biogas fuel.
Description : The major constituent of gobar gas is – (1) Carbon dioxide (2) Methane (3) Butane (4) Isobutane
Last Answer : (2) Methane Explanation: lobar Gas (Methane) is generated by the decomposition of organic cow dung. It consists of 55-65% methane, 30-35% carbon dioxide, with some hydrogen, nitrogen ... upon the origin of the anaerobic digestion process. Landfill gas typically has methane concentrations around 50%.
Description : Neoprene is a polymer of the following monomer (a) Chloroprene (b) Isoprene (c) Isobutane (d) Isopentene
Last Answer : Chloroprene
Description : 2-Methylpropene reacts with HBr to give (a) tert-Butyl bromide (b) Isobutane (c) n-Butyl bromide (d) None of these
Last Answer : tert-Butyl bromide
Description : LPG (Household cooking gas) is mainly a mixture of (a) Methane + Ethane (b) Acetylene + O2 (c) Butane + Isobutane (d) Acetylene + H2
Last Answer : Butane + Isobutane
Description : The biogas used for cooking is a mixture of which of the following ? (1) Carbon dioxide and oxygen (2) Isobutane and propane (3) Methane and carbon monoxide (4) Methane and carbon dioxide
Last Answer : Methane and carbon dioxide
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 : The major constituent of gobar gas is (1) Carbon dioxide (2) Methane (3) Butane (4) Isobutane
Last Answer : Methane
Description : Catalytic oxidation-dehydrogenation of methyl alcohol produces (A) Formaldehyde (B) Phenol (C) Acetone (D) Maleic anhydride
Last Answer : (A) Formaldehyde
Description : In the Newman projection for `2,2`- dimethylbutane `X` and `Y` can, respectively, be
Last Answer : In the Newman projection for `2,2`- dimethylbutane `X` and `Y` can, respectively, be A. H and H B. H and ` ... 2)H_(5)` and H D. `CH_(3) and CH_(3)`
Description : The newman projection formula of 2-3, dimethylbutane is given as X,Y respectively can be:
Last Answer : The newman projection formula of 2-3, dimethylbutane is given as X,Y respectively can be: A. `-CH(CH_(3))_(2) " ... )` D. `H" and " -CH(CH_(3))_(2)`
Description : The R/S designation for the following stereoisomers of 1,3-Dibromo-2-methylbutane is :
Last Answer : The R/S designation for the following stereoisomers of 1,3-Dibromo-2-methylbutane is : A. 2R, 3R B. 2R, 3S C. 2S, 3R D. 2S, 3S
Last Answer : isobutane Yes Natural Of gas A One of them Material.Natural In gas Of Amount 4 Percent.
Description : Methyl benzoate on hydrolysis gives (a) Acetic acid (b) Benzoic acid (c) Picric acid (d) Phenylacetic acid
Last Answer : Benzoic acid
Description : Benzoyl chloride on basic-hydrolysis (NaOH/H2O) gives : (a) Benzoic acid (b) Methyl benzoate (c) Sodium benzoate (d) Ethyl benzoate
Last Answer : Sodium benzoate
Description : Which of the following statements is false about toluene? (a) can be prepared by treating benzene with methyl chloride in the presence of AlCl3. (b) is converted to benzoic acid on refluxing with ... (d) can be nitrated with concentrated nitric acid to give a mixture of ortho and meta nitrotoluene.
Last Answer : can be nitrated with concentrated nitric acid to give a mixture of ortho and meta nitrotoluene
Description : Acetamide on heating with P2O5 gives : (a) Methylamine (b) Ethylamine (c) Methyl cyanide (d) None of these
Last Answer : Methyl cyanide
Description : Diethyl ether on heating with excess concentrated HI gives (a) Methyl iodide (b) Isopropyl iodide (c) Ethyl iodide (d) n-Propyl iodide
Last Answer : Ethyl iodide
Description : Hydroboration-oxidation of 2-Methylpropene gives (a) 2-Methyl-2-propanol (b) 1,2,3-Propanetriol (c) 2-Methyl-1-propanol (d) 1,2-Propanediol
Last Answer : 2-Methyl-1-propanol
Description : Addition of HCl to 3-methyl-1-pentene gives two products. One of these is 2-chloro-3-methylpentane. What is the other product? (a) 1-Chloro-3-methylpentane (b) 3-Chloro-3-methylpentane (c) 3-Chloro-2-methylpentane (d) 2-Chloro-2-methylpentane
Last Answer : 3-Chloro-3-methylpentane
Description : Hydration of 2-methyl-1-propene (with H2O/H2SO4) gives : (a) CH3CH2CH2OH (b) (CH3)3COH (c) CH3CH2CH2CH2OH (d) (CH3)2CHOH
Last Answer : (CH3)3COH
Description : An organic compound (A) on reduction gives a compound (B) which on reaction with `CHCI_(3)` and `NaOH` form (C). The compound (C) on catalytic reducti
Last Answer : An organic compound (A) on reduction gives a compound (B) which on reaction with `CHCI_(3)` and `NaOH` form (C ... . The compound (A) is: A. B. C. D.
Description : In catalytic alkylation, higher iso-butane to olefin ratio gives (A) Low final boiling point product (B) Higher yield (C) Both (A) and (B) (D) Neither (A) nor (B
Last Answer : (A) Low final boiling point product
Description : Pick out the correct statement about catalytic polymerisation. (A) H2SO4 polymerisation process gives gasoline rich in unsaturates (B) In H2SO4 polymerisation, H3PO4 is always used with 2% steam to prevent meta & ortho H3PO4 formation, which are inactive (C) Both (A) and (B) (D) Neither (A) nor (B
Last Answer : (B) In H2SO4 polymerisation, H3PO4 is always used with 2% steam to prevent meta & ortho H3PO4 formation, which are inactive
Description : Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil (A) Gives higher yield of petrol (B) Lower octane number of petrol (C) Higher sulphur content in the product (D) Higher gum forming material in petro
Last Answer : (A) Gives higher yield of petrol