Question

3. Which is most reactive in electrophilic aromatic substitution? (A) [benzene ring] (B) [toluene (methylbenzene)] CH3 (C) [trifluoromethylbenzene] CF3 (D) [anisole (methoxybenzene)] OCH3 4. Which is least reactive in electrophilic aromatic substitution? (A) [benzene ring] (B) [toluene (methylbenzene)] CH3 (C) [benzaldehyde] CHO (D) [benzotrichloride] CCl3 5. Which of these reactions would produce tert-butylbenzene in high yield? (1) [benzene ring] + (CH3)3CCl / AlCl3 ? (3) [benzene ring] + (CH3)2CHCH2Cl / AlCl3 ? (2) [benzene ring] + CH3CH2CHClCH3 / AlCl3 ? (4) [benzene ring] + (CH3)2C=CH2 / HCl, AlCl3 ? (A) 1, 3, and 4 only (B) 2 and 3 only (C) 1 and 2 only (D) 1, 2, 3, and 4

          3. Which is most reactive in electrophilic aromatic substitution?
(A) [benzene ring]
(B) [toluene (methylbenzene)] CH3
(C) [trifluoromethylbenzene] CF3
(D) [anisole (methoxybenzene)] OCH3

4. Which is least reactive in electrophilic aromatic substitution?
(A) [benzene ring]
(B) [toluene (methylbenzene)] CH3
(C) [benzaldehyde] CHO
(D) [benzotrichloride] CCl3

5. Which of these reactions would produce tert-butylbenzene in high yield?
(1) [benzene ring] + (CH3)3CCl / AlCl3 ?
(3) [benzene ring] + (CH3)2CHCH2Cl / AlCl3 ?
(2) [benzene ring] + CH3CH2CHClCH3 / AlCl3 ?
(4) [benzene ring] + (CH3)2C=CH2 / HCl, AlCl3 ?

(A) 1, 3, and 4 only (B) 2 and 3 only (C) 1 and 2 only (D) 1, 2, 3, and 4

3. Which is most reactive in electrophilic aromatic substitution?
(A) [benzene ring]
(B) [toluene (methylbenzene)] CH3
(C) [trifluoromethylbenzene] CF3
(D) [anisole (methoxybenzene)] OCH3

4. Which is least reactive in electrophilic aromatic substitution?
(A) [benzene ring]
(B) [toluene (methylbenzene)] CH3
(C) [benzaldehyde] CHO
(D) [benzotrichloride] CCl3

5. Which of these reactions would produce tert-butylbenzene in high yield?
(1) [benzene ring] + (CH3)3CCl / AlCl3 ?
(3) [benzene ring] + (CH3)2CHCH2Cl / AlCl3 ?
(2) [benzene ring] + CH3CH2CHClCH3 / AlCl3 ?
(4) [benzene ring] + (CH3)2C=CH2 / HCl, AlCl3 ?

(A) 1, 3, and 4 only (B) 2 and 3 only (C) 1 and 2 only (D) 1, 2, 3, and 4

Added by Maria L.

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