.Gas oil is the same as
1.diesel oil
2.petrol
3.kerosene oil
4.lubricating oil
.Isopropyl bromide on Wurtz reaction gives
1.Hexane
2.Propane
3.2, 3--Dimethylbutane
4.Neohexane.
.see-Butyl chloride on boiling with alc. KOH gives ......... as the main product.
1.1-Butene
2.2-Butene
3.1-Butanol
4.2-Butanol.
.Starting from benzene, toluene is prepared by
1.Reimer-Tiemann reaction
2.Friedel-Crafts acylation
3.Cannizzaros reaction
4.Kolbes reaction
.The ozonolysis is used to locate the presence of
1.a single bond between C-C atoms
2.a double bond between C-C atoms
3.a triple bond between C and C atoms
4.None of these
.Which of the following compounds has the highest boiling point?
1.n-Hexane
2.n-Pentane
3.2, 2-Dimethylpropane
4.2-Methylbutane
.Which of the following hydrocarbons would give a red precipitate on treatment with ammonical cuprous chloride solution ?
1.2-Butene
2.2-Butyne
3.1, 3-Butadiene
4.1-Butyne.
.Which of the following is linear?
1.Ethyne
2.Methane
3.Ethylene
4.Both A and C
1, 1-Dibromoethane when heated with zinc dust produces
1.Ethyl bromide
2.Ethene
3.Vinyl bromide
4.2-Butene.
2, 3-Dibromobutane, when heat with zinc dust, yields .
1.2-Butene
2.2-Butyne
3.1-Butene
4.Butane
A fuel having high octane number containing mainly
1.branched hydrocarbons
2.straight chain alkane
3.alkanes
4.All the above
A mixture of sodium butanoate and 2-methyl sodium propanoate is heated with sodalime. The resulting compound will be methane
1.propane and propyne
2.a mixture of propane and 2-methyl propane
3.methane
4.propane
Acetylene can be converted into methyl vinyl ether on reaction with
1.Vinyl alcohol
2.Methyl alcohol
3.Dimethyl ether
4.Methanal.
Addition of HBr to iso-butylene mainly gives
1.iso-Butyl bromide
2.n-Butyl bromide
3.tert-Butyl bromide
4.sec-Butyl bromide.
Addition of HCl to vinyl chloride gives 1, 1-dichlorocthane because of None of these.
1.Inductive effect of Cl
2.Mesomeric effect of Cl
3.Restricted rotation around double bond
4.None of these.
Alkanes mainly show reactions having
1.Free radical formation
2.Ionic elimination
3.Ionic formation
4.Heat/photochemical substitution.
Allylic bromination of an olefin is
1.Nucleophilic substitution
2.Electrophilic substitution
3.Free radical substitution
4.Electrophilic addition.
Among the following, the compound that can be most readily sulphonated is
1.Nitrobenzene
2.1, 3-Dinitrobenzene
3.Chlorobenzene
4.Toluene.
An example of conjugated diene is
1.1, 4-Pentadiene
2.1, 5-Hexadiene
3.1, 2-Butadiene
4.1, 3-Pentadiene.
Aqueous sulphuric acid reacts with 2-methyl-1-butene to give predominantly
1.iso-Butyl hydrogen sulphate
2.2-Metyl-2-butanol
3.2-Methyl-1-butanol
4.sec-Butyl hydrogen sulphate.
Benzene on ozonolysis yields
1.Glyoxal
2.Acetone
3.Ethanal
4.Methanal.
Benzene reacts with excess of cholrine in sunlight to form Hexachlorobenzene
1.Hexachlorobenzene
2.m-Dichlorobenzene
3.Chlorobenzene
4.Benzene hexzchlorode.
Electrolysis of potassium ethanoate gives
1.methane
2.propene
3.ethane
4.ethyne
Ethyne can be prepared in a single step from
1.Calcium carbide
2.Ethylidene bromide
3.Ethylene bromide
4.All of these.
Gasoline contains hydrocarbons in the rane C-7 to C-12
1.C-7 to C-12
2.C-12 to C-15
3.C-4 to C-6
4.C-5 to C-8.
Halogenation of alkanes is an example of .
1.Electrophilic substitution
2.Nucleopholic substitution
3.Free radical substitution
4.Reduction
he number of litres of air needed to burn completely 8 litres of acetylene is 100 75 90 40
1.100
2.75
3.90
4.40
Mesitylene can be obtained by polymerization of Ethyne
1.Ethyne
2.Ethene
3.Propene
4.Propyne.
On chlorination, nitrobenzene gives ........ as the major product.
1.o-Chloro nitrobenzene
2.p-chloro nitrobenzene
3.m-chloro nitrobenzene
4.All the three.
Ozonolysis of p-xylene gives
1.Glyoxal
2.Methyl glyoxal
3.Both of these
4.None of these.
Propene + HBr gives
1.1, 3-Dibromopropane
2.2-Bromopropane
3.1-Bromo propane
4.1, 2-Dibromopropane.
Propyne on reaction with aqueous chlorine gives
1.1, 1, 2, 2-Tetrachloropropane
2.1, 2-Dichloropropene
3.1, 1-Dichloropropanone
4.2, 2-dichloropropanal.
Starting from which of t efollowing compounds can methane be prepared in one step ? All of these.
1.Sodium acetate
2.Aluminium carbide
3.Methyl magnesium bromide
4.All of these.
Starting from which of the following compounds methane as well as ethane can be prepared in separate single steps ?
1.Ethyl magnesium bromide
2.Methyl bromide
3.Sodium propanoate
4.Ethyl alcohol.
Sulphur monochloride reacts with .... to give mustard gas.
1.Eathane
2.Ethene
3.Ethyne
4.Methane.
The addition of HBr to styrene gives ..... as the major product. 1-Bromo-1-phenylethane
1.1-Bromo-1-phenylethane
2.2-Bromo-1phenylethane
3.Benzyl chloride
4.p-Bromophentl ethylene.
The catalyst used in the manufacture of polyethene by Ziegler method is
1.Titanium tetrachloride and triphenyl aluminium
2.Titanium tetrachloride and trimethyl aluminimum
3.Titanium dioxide
4.Titanium isopropoxide.
The minimum temp. at which oil gives sufficient vapours to form an explosive mixture with air is known as last point
1.optimum temp.
2.kindling temp.
3.flash point
4.last point
To prepare a pure sample of n-hexane using sodium metal as one reactant, the other reactant will be
1.Ethyl chloride and n-butyl chloride
2.Methyl chloride and n-pentyl bromide
3.Ethyl bromide and n-bytyl bromide
4.n-Propyl bromide.
Towards electrophilic substitution the most reactive will be
1.Nitrobenzene
2.Aniline
3.Aniline hydrochloride
4.N-Acetylaniline.
When HBr adds to 1-butene in the presence of benzoyl peroxide, the product is
1.1-Bromobutane
2.2-Buromobutane
3.1-Bromobutene
4.2-Bromobutene.
When HCl is passed through propene in the presence of benzoyl peroxide, it gives
1.n-Propyl chloride
2.iso-Propyl chloride
3.Allyl chloride
4.No reaction.
Which of the following can form metallic derivatives by replacement of H-atoms ?
1.Ethene
2.Methane
3.2-Butyne
4.1-Pentyne.
Which of the following derivatives of benzene would undergo nitration most readily?
1.Nitrobenzene
2.Chlorobenzene
3.Toluene
4.Benzoic acid.
Which of the following is least acidic ?
1.Ethyne
2.Propyne
3.1-Butyne
4.2-Butyne.
Which of the following is most acidic ?
1.Ethyne
2.Propyne
3.1-Butyne
4.2-Butyne.
Which of the following is most acidic ? Methane Ethylene .
1.Methane
2.Ehtane
3.Ethylene
4.Acatylene
Which one of the following has the smallest heat of hydrogenation per mole? cis-2Butene
1.1-butene
2.trans-2-Butene
3.cis-2Butene
4.1, 3-Buteadiene.