Question

Which of the following statements are correct with respect to benzene?
(i) It forms triozonide with $O_3$.
(ii) It is non-planar.
(iii) It forms only one monosubstituted product with $C{H}_{3}COCl$ in the presence of anhyd. $AlC{l}_3$.
(iv) If forms hexachlorobenzene on heating with $C{l}_2$ under photochemical condition.

• A. (i), (ii)
• B. (ii), (iii)
• C. (i), (iii)
• D. (iii), (iv)

Answer 1

Answer: (C)

(ii) Benzene is a planar molecule.

(iii) Benzene when treated with a mixture of ethanoyl chloride $C{H}_{3}COCl$ and aluminium chloride as catalyst. A ketone called phenylethanone (monosubstituted) is obtained.



(iv) Benzene when heated with $C{l}_2$ under photochemical condition gives $1,2,3,4,5,6-$ hexachlorocyclohexane.