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.Management Sciences
Category: Aromatic Hydrocarbons
Benzene does not undergo___________________?
A. Substitution reaction
B. Addition reaction
C. Polymerization reactions
D. Oxidation reactions
Which one of the following methods will not give benzene ?
A. Heating sod. Salt of Benzoic acid with soda lime
B. Distilling phenol with Zn dust
C. Chlorobenzene with NaOH at 360°C & 150atm.
D. Hydrolysis of benzene sulphonic acid with super heated steam
Which one of the following statement is not correct about benzene ?
A. On hydrogenation 208 KJ/mole is liberated
B. C-H bond length in benzene is 1.09 A?
C. Molecular mass of benzene is 78.108
D. Resonance energy of benzene is 150.5 K Cal/mole
Which is fused cyclic aromatic compound _____________________?
A. diphenyl amine
B. diphenyl methane
C. naphthalene
D. biphenyl
What catalyst is employed when benzene is prepared from acetylene at 70°C?
A. Cr2O3 + A2O3 + SiO2
B. Raney nickel
C. Organo-nickel
D. Ni 250 – 300°C
Ozonolysis of benzene produces___________________?
A. Glycol
B. Glyoxal
C. Vicinal diol
D. Both B & C
In benzene sulphonic acid the sulphonic group is attached with benzene ring through ___________________?
A. Hydrogen
B. Oxygen
C. Sulphur
D. OH
Michael Faraday discovered benzene in the gas which was produced by destructive distillation of vegetable oil that is done in________________?
A. The presence of Oxygen
B. The presence of Hydrogen
C. The absence of Oxygen
D. The presence of excessive Oxygen
Phenanthrene is a fused polycyclic compound contains __________ benzene rings ?
A. Two
B. Three
C. Four
D. Five
During sulphonation of benzene H2SO4 generates the electrophile _________________?
A. HSO4-
B. SO2
C. SO3
D. H+
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