Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at _____________ °C ?
Correct answer: A. 15-30
- A. 15-30
- B. 90-100
- C. 250-300
- D. < 0
Explanation
The chloral-chlorobenzene condensation forming DDT is strongly exothermic, so industrial operation is kept at a relatively low temperature, approximately 15 to 30°C. Higher temperatures promote side reactions and are not used for this step.
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