Which statement about (CH₃)₂CHCH₂COOH is correct?
A - 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... show full transcript
Worked Solution & Example Answer:Which statement about (CH₃)₂CHCH₂COOH is correct?
A - 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. The compound does not react with magnesium to form carbon dioxide under standard conditions.
Step 2
B. It can form hydrogen bonds.
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Answer
This statement is correct. The presence of the carboxylic acid functional group (-COOH) allows this compound to form hydrogen bonds with water, enhancing its solubility.
Step 3
C. It has optical isomers.
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Answer
This statement is incorrect. The compound does not have a chiral center, and therefore cannot 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 the compound is 3-methylbutanoic acid, as the methyl group is on the third carbon.
