Nitration of chlorobenzene gives___________________?

A. O – chloronitrobenzene
B. P – chloronitrobenzene
C. M – chloronitrobenzene
D. A & b

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

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

Reacting bromine with benzene in the presence of sunlight will result in_______________?

A. The rupturing of benzene ring
B. Substitution reaction
C. Addition reaction
D. No-reaction

During sulphonation of benzene H2SO4 generates the electrophile _________________?

A. Hso4-
B. So2
C. So3
D. H+

Which compound will readily undergo sulphonation ?

A. Benzene
B. Nitro benzene
C. Toluene
D. Chlorobenzene

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

Replacement of hydrogen of benzene by alkyl group in the presence of alkyl halide & aluminum chloride is known as__________________?

A. Dows process
B. Friedel & craft acylation
C. Friedel & craft alkylation
D. Clemmenson reduction

Which compound form benzoic acid on oxidation with acidified KMnO4 or K2Cr2O7 ?

A. Toluene
B. Ethyl benzene
C. N-propyl benzene
D. All

What is the molecular formula of Benzenetriozonide ?

A. C6h6o9
B. C6h5o8
C. C6h5o9
D. C6h6o6