| 1 |
Benzene does not undergo polymerization and it is also resistant to
|
A. Reduction
B. Oxidation
C. Alkylation
D. Ozonolysis
|
| 2 |
Preparation of vegetable ghee involves
|
A. Halogenations
B. Hydrogenations
C. Hydroxylation
D. Dehydrogenations
|
| 3 |
The treatment of benzene with isobutene in the presence of sulphuric acid give
|
A. isobutyl benzene
B. tert-Butyl benzene
C. n- Butyl benzene
D. no reaction
|
| 4 |
If we remove one hydrogen atom from an alkane we obtain a group called
|
A. Acetyle group
B. Formyle group
C. Alkyle group
D. Ketyle group
|
| 5 |
A six membered ring containing one double bond called
|
A. Cyclohexene
B. Cyclohexane
C. Cyclohexadiene
D. None
|
| 6 |
The reaction-method that does not give an alkane is
|
A. Catalytic hydrogenation of alkanes
B. Wurtz reaction
C. Hydrolysis of alkyl magnesium bromide
D. Dehydrohalogenation of an alkyl halide
|
| 7 |
The hydrocarbon which is used as an illuminating agent
|
A. Methane
B. Methene
C. Methyne
D. B & C
|
| 8 |
The stability of acromatic compounds decreases with ------- in the no. of its resonance structure
|
A. Decrease
B. Increase
C. Remain constant
D. Partially decreases
|
| 9 |
The order of dehydration of alcohol
|
A. 10> 20> 30
B. 10> 30> 20
C. 20> 30> 10
D. 30> 20> 10
|
| 10 |
The major reaction occurring in the engines of automobiles is
|
A. Oxidation
B. Reducing
C. Combustion
D. Decomposition
|
| 11 |
Benzene is obtained by fractional distillation of
|
A. Heavy oil
B. Anthracene oil
C. Middle oil
D. Light oil
|
| 12 |
All are ortho & Para directing except
|
A. X
B. OH
C. NR3
D. NH2
|
| 13 |
To differentiate isomers we use
|
A. n-
B. iso-
C. neo
D. All of them
|
| 14 |
Which of the following reaction is characteristic of benzene
|
A. Electrophilic substitution reaction
B. Reduction
C. Oxidation
D. Ozonolysis
|
| 15 |
The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with the rule
|
A. Hund's rule
B. Markowvikov's rule
C. Pauli's exclusion principle
D. Auf ban principle
|
| 16 |
"Each different compound should have a different name" was published by IUPAC system of nomenclature in
|
A. 1892
B. 1830
C. 1947
D. 1979
|
| 17 |
The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with
|
A. Hund's rule
B. Markownikov's rule
C. Pauli's Exclusion principle
D. Auf ban principle
|
| 18 |
The benzene molecule contains
|
A. Three double bonds
B. Two double bonds
C. One double bonds
D. Delocalizedπ-electron charge
|
| 19 |
Which one of the following gases is used for artificial ripening of fruits
|
A. Ethane
B. Ethyne
C. Methane
D. Propane
|
| 20 |
Marsh gas was the name given to
|
A. Methane
B. Ethane
C. Propane
D. Butane
|
| 21 |
The process in which orbitals of different energies and shapes mix with each other to give equivalent hybrid orbitals is called
|
A. Isomerization
B. polymerization
C. Hybridization
D. Resonance
|
| 22 |
Which is symmetric alkene?
|
A. CH=C-CH2
B. CH≡CH
C. CH3-C≡C - CH3
D. B and C
|
| 23 |
The sp2hybird orbitals are oriented in space at one angle
|
A. 180°
B. 109.5°
C. 100°
D. 120°
|
| 24 |
Hydrocarbon which is liquid at room temperature is
|
A. Pentane
B. Butane
C. Propane
D. Ethane
|
| 25 |
Which of the following is not an electrophitic substitution reaction of benzene
|
A. Nitration
B. Sulphonation
C. Fridel-Craft alkylation
D. Free radical chlorination of benzene
|
| 26 |
Hydrogenation of alkenes/alkynes inthe presence of Ni as catalyst at 3000°C result in the formation of corresponding alkanes. This reaction is known as
|
A. Sabatier-senderens reaction
B. kolbes reaction
C. Cannizaro's reaction
D. Haloform reaction
|
| 27 |
Substitution of halogen in the benzene ring requires catalyst
|
A. AlCl3
B. FeCl3
C. SiO2
D. Organo - nickel
|
| 28 |
Hybridization of each carbon atom in benzene ring is
|
A. sp hybridized
B. sp2hybridized
C. sp3
D. dsp2
|
| 29 |
Preparation of vegetable ghee involves
|
A. Halogenations
B. Hydrogenation
C. Hydroxylation
D. Dehydrogenation
|
| 30 |
Toluene is also called
|
A. Hydroxyl benzene
B. Methyl benzene
C. ethyl benzene
D. None
|