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Which compound reacts with warm dilute aqueous sodium hydroxide? A - AQA - A-Level Chemistry - Question 31 - 2021 - Paper 3
Question 31
Which compound reacts with warm dilute aqueous sodium hydroxide? A. C4H6 B. CH2=CH-CH3 C. CH3CH2CH-NH2 D. (CH3CO)2O
Worked Solution & Example Answer:Which compound reacts with warm dilute aqueous sodium hydroxide? A - AQA - A-Level Chemistry - Question 31 - 2021 - Paper 3
Step 1
Identify the compound that reacts with warm dilute aqueous sodium hydroxide
Answer
The compound that reacts with warm dilute aqueous sodium hydroxide is the one that can undergo hydrolysis or saponification reactions. Among the options given:
- A. C4H6: This is an alkyne, which typically does not react with dilute sodium hydroxide.
- B. CH2=CH-CH3: This is an alkene, which may react with strong bases but not typically in a hydrolysis reaction.
- C. CH3CH2CH-NH2: This compound is an amine and does not react with dilute sodium hydroxide under these conditions.
- D. (CH3CO)2O: This is an acetic anhydride which reacts with aqueous sodium hydroxide to yield acetic acid and is the correct answer.
Thus, the answer is D: (CH3CO)2O.