Acid anhydrides, acyl chlorides and acylation Quiz
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5 questions, one answer each
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1. Which compound is formed when ethanoyl chloride reacts with ammonia?
- A. Ethanoic acid
- B. Ethanamide
- C. Methylamine
- D. Ethylamine
2. What are the products of ethanoic anhydride reacting with ethanol?
- A. Ethyl ethanoate and ethanoic acid
- B. Ethyl ethanoate and HCl
- C. Ethanoic acid only
- D. Ethanamide and ethanol
3. Which is a reason ethanoic anhydride is preferred to ethanoyl chloride in industry?
- A. It is more reactive with water
- B. It produces HCl
- C. It is cheaper and less corrosive
- D. It is a stronger acid
4. Which describes the mechanism of the reaction between ethanoyl chloride and water?
- A. Electrophilic addition
- B. Free-radical substitution
- C. Elimination only
- D. Nucleophilic addition–elimination
5. A student recrystallises aspirin and finds it melts over a wide range at a low temperature. This suggests it:
- A. Is pure
- B. Is impure
- C. Has been oxidised
- D. Is a different compound