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1. What is the expected product when a UV light is shined on a mixture of toluen

ID: 813440 • Letter: 1

Question

1. What is the expected product when a UV light is shined on a mixture of toluene and bromine?

2. Which of the following is classified as a conjugated diene?

  a) 1,2-octadiene b) 3,4-octadiene c) 2,4-octadiene d) 1,4-octadiene

3. What kinds of substituents are most effective in activating aromatic rings toward nucleophilic aromatic   

   substitution?

a) strongly electron donating groups

b) groups that withdraw electrons inductively and donate electrons by resonance

c) groups with lone pairs directly attached to the ring

d) strongly electron withdrawing groups

4. Which of these reactions of aromatics is reversible? (FC=Friedel-Crafts)

   a) nitration b) bromination c) FC acylation d) FC alkylation e) sulfonation

5. Which of the following compounds cannot act as the diene in a Diels-Alder reaction.

1. What is the expected product when a UV light is shined on a mixture of toluene and bromine? 2. Which of the following is classified as a conjugated diene? a) 1,2-octadiene b) 3,4-octadiene c) 2,4-octadiene d) 1,4-octadiene 3. What kinds of substituents are most effective in activating aromatic rings toward nucleophilic aromatic substitution? a) strongly electron donating groups b) groups that withdraw electrons inductively and donate electrons by resonance c) groups with lone pairs directly attached to the ring d) strongly electron withdrawing groups 4. Which of these reactions of aromatics is reversible? (FC=Friedel-Crafts) a) nitration b) bromination c) FC acylation d) FC alkylation e) sulfonation 5. Which of the following compounds cannot act as the diene in a Diels-Alder reaction.

Explanation / Answer


1.   1-Bromo-1-phenylmethane.

2. c) 2,4-octadiene

3. d) strongly electron withdrawing groups

4. e) sulfonation

5. no data