quiz 3

Question 1

which of the following is rate determining step in electrophilic substitution reaction?

Answer 1

attack by electrophilic reagent on benzene ring

Question 2

Which of the following act as catalysis in the nitration of benzene?

Answer 2

Conc. H2SO4

Question 3

Fuming sulfuric acid is the solution of ___% SO3 in conc. H2SO4.

Answer 3

7%

Question 4

Which of the following is the necessary condition for de-sulfonation?

Answer 4

Remove volatile hydrocarbon by steam distillation

Question 5

Which of the following act as electrophile in halogenation?

Answer 5

Halonium ion

Question 6

Aromatic bromination catalyzed by the Lewis acid thalium acetate gives _____

Answer 6

Para isomer

Question 7

The reaction in which benzene reacts with alkyl halide in the presence of a Lewis acid as a catalyst to produce alkylbenzene is known as _____

Answer 7

Friedel-Crafts Alkylation

Question 8

Which of the following is not a product of the reaction of benzene with CH3Cl and AlCl3?

Answer 8

Isopropyl benzene

Question 9

The product of Friedel-Crafts Acylation reactions are _____

Answer 9

Aryl ketone

Question 10

How will you convert benzene into n-propyl benzene?

Answer 10

Friedel-Crafts Acylation followed by Clemmensen reduction