Q.1.
What will be the product formed when phenol reacts with Br2 in CCl4 medium?
- a) 3-Bromophenol
- b) 4- Bromophenol
- c) 3,5-Dibromophenol
- d) 2,4,6-Tribromophenol
Q.2.
What is the electrophile in the electrophilic substitution reaction of benzene using oleum and conc. H2SO4?
- a) SO3
- b) NO3
- c) NO2+
- d) NO+
Q.3.
What will be the attacking electrophile in this reaction?
- a) Carbanion
- b) Halonium
- c) Radical
- d) Transition state
Q.4.
Which of the following aromatic compounds undergo Friedel–Crafts alkylation with methyl chloride and aluminum chloride?
- a) Benzoic acid
- b) Nitrobenzene
- c) Toluene
- d) Aniline
Q.5.
What will be the product in the given reaction?
- a) m-chlorophenol
- b) o-chlorophenol and p-chlorophenol
- c) o-hydroxytoluene and p-hydroxytoluene
- d) m-hydroxytoluene
Q.6.
What is the electrophile in the acylation of benzene?
- a) AlCl3
- b) CO+
- c) Cl+
- d) R-CO+
Q.7.
How would you synthesis the following reaction?
- a) conc. HNO3 + conc. H2SO4
- b) conc. HNO3
- c) anhydrous AlCl3 + Ph-NO2
- d) conc. H2SO4 + Oleum
Q.8.
Which of the following reactants can be used to carry out following reaction?
- a) conc. HNO3 + conc. H2SO4
- b) HCl + CO + AlCl3
- c) anhydrous AlCl3 + Ph-NO2
- d) conc. H2SO4 + Oleum
Q.9.
What will be the product in the given reaction?
- a) m-chlorotoluene
- b) o-chlorotoluene and p-chlorotoluene
- c) 1-chloro-3-methylbenzene
- d) no reaction
Q.10.
Which of the following is the most activating in electrophilic aromatic substitution?
- a) -NO2
- b) -NHCOCH3
- c) -CN
- d) -NH2