A-LevelChemistryCarboxylic acids and derivatives9701/12 · Oct/Nov 2021 · Q291 Mark
Organic compound Z has an alcohol group and a carboxylic acid group. Compound Z reacts with magnesium carbonate to make a salt with a relative formula mass of 230.3. Compound Z does not react with acidified potassium manganate(VII). What could be the identity of compound Z?
A2-hydroxy-2-methylbutanoic acid
B2-hydroxy-2-methylpropanoic acid
C3-hydroxy-2-methylbutanoic acid
D3-hydroxy-2-methylpropanoic acid
✓ Correct answer
B: 2-hydroxy-2-methylpropanoic acid
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