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The question
Read these statements on the acid-catalysed dehydration of alcohols. A. Ease of dehydration follows the order tertiary > secondary > primary. B. Ethanol with conc. H₂SO₄ at 443 K gives ethene as the main product. C. The slowest step is the protonation of the alcohol. D. Excess ethanol with conc. H₂SO₄ at 413 K gives ethoxyethane. Which of these are correct?
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