| 1 |
"Each different compound should have a different name" was published by IUPAC system of nomenclature in
|
A. 1892
B. 1830
C. 1947
D. 1979
|
| 2 |
When methane reacts with Cl2in the presence of diffused light the products obtained are
|
A. Chloroform only
B. Carbon tetrachloride only
C. Chloromethane and dichloromethane
D. Mixture of a, b, c
|
| 3 |
Most common reactions of benzene and its derivatives are
|
A. electrophilic addition reactions
B. electrophilic substitution reactions
C. Nucleophilic addition reactions
D. Nucleophilic subtitution reactions
|
| 4 |
Preparation of ethylbenzene by the reaction of bromobenzene, ethylbromide and sodium is called
|
A. Wurtz reaction
B. Fitting reaction
C. Wurtz fitting reaction
D. None of these
|
| 5 |
Which of the following is not aromatic hydrogencarbon
|
A. Benzene
B. Naphthalene
C. Toluene
D. Cyclohexene
|
| 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 |
Hydrocarbons contain :
|
A. Carbon only carbon
B. Hydrogen only
C. Carbon & hydrogen
D. Carbon , hydrogen & halogen
|
| 8 |
The electron releasing effect of methyl group is significant and it makes ring a good
|
A. Electrophilic
B. Nucleophilic
C. Nucleophobic
D. Hydrophobic
|
| 9 |
The empirical formula of benzene is determined by
|
A. IR spectra
B. U.V
C. Elemental analysis
D. NMR spectra
|
| 10 |
The C-C bond angles in benzene ring are
|
A. 119°
B. 120°
C. 121°
D. None
|
| 11 |
Which one of following is not monocyclic aromatic hydrocarbon
|
A. Benzaldehyde
B. Benzoic acid
C. Benzene sulfonic acid
D. Biphenyl
|
| 12 |
Which reaction is too vigorous to control
|
A. Chlorination
B. Bromination
C. Iodination
D. Fluorination
|
| 13 |
De halogenatiion of tetrahalides happens in the presence of active metal like
|
A. Zn
B. Mg
C. Both a and b
D. None of them
|
| 14 |
Which gas is produced by treating CaC2with water
|
A. Methane
B. Ethane
C. Acetylene
D. HCI
|
| 15 |
Aromatic hydrocarbons are the derivatives of
|
A. Normal series of paraffins
B. Alkene
C. Benzene
D. Cyclohexane
|
| 16 |
How many isomeric disubtituted products are obtained by the introducing of second group in the ring
|
A. Two
B. Three
C. Four
D. None
|
| 17 |
The presence of a double bond in a compound in the sign of:
|
A. Saturation
B. Unsaturation
C. Subsitution
D. None
|
| 18 |
An alkynes having Carbon count of 20 is
|
A. gas
B. liquid
C. Solid
D. None
|
| 19 |
Hydrocarbons are organic compounds which contain elements such as
|
A. Hydrogen
B. Carbon
C. Hydrogen and carbon
D. Halogens
|
| 20 |
Benzene is obtained from benzene sulphonic acid by treating with
|
A. HCl
B. NaOH
C. H2O
D. NaHCO3
|
| 21 |
Alkanes are least reactive towards:
|
A. Acids and bases
B. Reducing agents
C. Oxidizing agents
D. All of these
|
| 22 |
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
|
| 23 |
Substitution of halogen in the benzene ring requires catalyst
|
A. AlCl3
B. FeCl3
C. SiO2
D. Organo - nickel
|
| 24 |
Amongst the following the compound that can be most readily sulphonated is
|
A. Toluene
B. Benzene
C. Nitrobenzene
D. Chlorobenzene
|
| 25 |
The presence of a double bond in a compound is the sign of
|
A. Saturation
B. Unsaturation
C. Substitution
D. None of above
|
| 26 |
The major reaction occurring in the engines of automobiles is
|
A. Oxidation
B. Reducing
C. Combustion
D. Decomposition
|
| 27 |
Which is the used as test for the presence of alkenes
|
A. Reaction of cold dilute alkaline KMnO4
B. Combustion
C. Polymerization
D. Catalytic hydrogenation
|
| 28 |
When alkyl is treated with chlorine in the presence of sunlight
|
A. 1,3 dichloroproduct is formed
B. 1,4 dichloro product is formed
C. 1,3,5 trichloro product is formed
D. Only alkyl group is substituted
|
| 29 |
Raney - nickel is the alloy of Ni with
|
A. Pt
B. Al
C. Cu
D. Pd
|
| 30 |
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
|