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Entry Test MCQ :: Aromatic Hydrocarbons


21.  In Friedel Craft Alkylation A?C?3 is used to generate
A. Strong nucleophile B. Weak nucleophile
C. Strong electrophile D. Weak electrophile

22.  Acetophenone is a
A. Ether B. Ketone
C. Aldehyde D. Ester

23.  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

24.  Benzene does not undergo
A. Substitution reaction B. Addition reaction
C. Polymerization reactions D. Oxidation reactions

25.  During sulphonation of benzene H2SO4 generates the electrophile
A. HSO4- B. SO2
C. SO3 D. H+

26.  Nitronium ion is
A. NO3 B. NO
C. NO2- D. NO2+

27.  Which compound will readily undergo sulphonation?
A. Benzene B. Nitro benzene
C. Toluene D. Chlorobenzene

28.  Benzene is heated in air with V2O5 at 450?C it undergoes
A. Substitution reaction B. Addition reaction
C. Elimination reaction D. Oxidation reaction

29.  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

30.  The preparation of benzene from acetylene can also be said as
A. Oxidation B. Polymerization
C. Dehydration D. Condensation




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