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- Subject
- Chemical Processchemical-engineering › chemical-process
- Published
- 15 Feb 2019
- Last updated
- 28 May 2026
Explanation
Option A is correct: DDT is synthesized by condensing chlorobenzene with chloral at 30°C using oleum, releasing significant heat. Option B is correct: Chloral is derived by chlorinating ethanol. Option C is correct: Insecticides that act through the respiratory system are called fumigants. Option D is incorrect: Benzene hexachloride is not classified as a contact insecticide.
More Chemical Process MCQs
Practice related questions from the same subject.
- 1.Identify the incorrect statement from the following:
- 2.Which of the following statements is accurate?
- 3.Identify the incorrect statement from the following:
- 4.What is the approximate percentage of sucrose found in cane sugar?
- 5.What is the primary purpose of using hydrated lime in the process of water treatment?
- 6.What is the chemical name of a Grignard reagent?
- 7.Which product is synthesized using acetylene and hydrochloric acid as the primary raw materials?
- 8.What class of chemicals do Parathion and Malathion belong to?
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