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Questions and Answers
How are symmetrical ethers prepared according to the text?
How are symmetrical ethers prepared according to the text?
- By halogenating ethanol
- By adding excess water to alcohol
- By reacting diethyl ether with oxonium salts
- By dehydrating alcohol with conc. H₂SO₄ at 140°C (correct)
What is the first step in the mechanism of symmetrical ether formation?
What is the first step in the mechanism of symmetrical ether formation?
- Protonation of ethanol (correct)
- Formation of carbonium ion
- Halogenation of ethanol
- Elimination of water molecule
At what temperature is the dehydration of alcohol to form symmetrical ethers carried out?
At what temperature is the dehydration of alcohol to form symmetrical ethers carried out?
- 140°C (correct)
- 80°C
- 100°C
- 200°C
What is the product obtained from the halogenation of ethanol?
What is the product obtained from the halogenation of ethanol?
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How do ethers react with oxonium salts according to the text?
How do ethers react with oxonium salts according to the text?
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What role does H₂SO₄ play in the preparation of symmetrical ethers?
What role does H₂SO₄ play in the preparation of symmetrical ethers?
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