Which reaction converts ethanol into ethene?
Answer and explanation
Correct answer: D. Dehydration with concentrated sulfuric acid at about 170 °C
Heating ethanol with concentrated HSO at about 170 °C removes water to form ethene.
Answer: Dehydration with concentrated sulfuric acid at about 170 °C.
Why not the others: Oxidation with acidified dichromate: it gives ethanoic acid. Addition of hydrogen: it would give ethane from ethene. Esterification with ethanoic acid: it gives ethyl ethanoate.
Answer: Dehydration with concentrated sulfuric acid at about 170 °C.
Why not the others: Oxidation with acidified dichromate: it gives ethanoic acid. Addition of hydrogen: it would give ethane from ethene. Esterification with ethanoic acid: it gives ethyl ethanoate.
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