Haloalkanes and HaloareneshardMCQ SINGLE

The powerful synthetic insecticide DDT is industrially prepared by smoothly heating chlorobenzene wiHaloalkanes and Haloarenes Chemistry Question

Question

The powerful synthetic insecticide DDT is industrially prepared by smoothly heating chlorobenzene with which of the following highly halogenated compounds in the presence of concentrated sulfuric acid?

Answer: B

💡 Solution & Explanation

The classic chemical synthesis of DDT (p,p'-Dichlorodiphenyltrichloroethane) proceeds precisely via an electrophilic condensation reaction. Specifically, one mole of the heavily halogenated aldehyde chloral ($CCl_3CHO$) systematically reacts with exactly two moles of chlorobenzene utilizing concentrated $H_2SO_4$ as a dehydrating agent to securely form the final product.

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