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 `CH_(3)COCl` in the presence of anhyd. `AlCl_(3),`
(iv) If forms hexachlorobenzene on heating with `Cl_(2)` under photochemical condition.

Options

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

Answer

C

Explanation

(ii) Benzene is a planar molecule.
(iii) Benzene when treated with a mixture of ethanoyl chloride `CH_(3) COCl` and aluminium chloride as catalyst. A ketone celled phenylethanone (monosubstituted) is obtained.

(iv) Benzene when heated with `Cl_(2)` under photochemical conditino gives `1,2,3,4,5,6-` hexachlorocyclohexne,