Which statement about (CH₃)₂CHCH₂COOH is correct?
A In aqueous solution it reacts with magnesium to form carbon dioxide - AQA - A-Level Chemistry - Question 17 - 2021 - Paper 3
Question 17
Which statement about (CH₃)₂CHCH₂COOH is correct?
A In aqueous solution it reacts with magnesium to form carbon dioxide.
B It can form hydrogen bonds.
C It has op... show full transcript
Worked Solution & Example Answer:Which statement about (CH₃)₂CHCH₂COOH is correct?
A In aqueous solution it reacts with magnesium to form carbon dioxide - AQA - A-Level Chemistry - Question 17 - 2021 - Paper 3
Step 1
A In aqueous solution it reacts with magnesium to form carbon dioxide.
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Answer
This statement is incorrect because (CH₃)₂CHCH₂COOH does not react with magnesium in aqueous solution to produce carbon dioxide.
Step 2
B It can form hydrogen bonds.
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Answer
This statement is correct. (CH₃)₂CHCH₂COOH, being a carboxylic acid, contains a hydroxyl group (-OH) that is capable of forming hydrogen bonds with other molecules.
Step 3
C It has optical isomers.
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Answer
This statement is incorrect because (CH₃)₂CHCH₂COOH does not have a chiral center, and thus does not exhibit optical isomerism.
Step 4
D It has the IUPAC name 2-methylbutanoic acid.
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Answer
This statement is incorrect. The correct IUPAC name for (CH₃)₂CHCH₂COOH is 3-methylbutanoic acid.
