Which of these statements about carboxylic acids is not correct?
Aqueous ethanoic acid has a pH less than 7.
Methyl orange turns yellow in aqueous ethanoic acid.
They produce carbon dioxide when reacted with a metal carbonate.
They contain the functional group -COOH.
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The diagram shows the structure of a compound, X.
Which row correctly describes the properties of X?
| colourless | characteristic smell | dissolves in water | |
| A | ✓ | ✗ | ✓ |
| B | ✓ | ✓ | ✗ |
| C | ✓ | ✓ | ✓ |
| D | ✗ | ✗ | ✓ |
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The products of some reactions are shown below.
Which row correctly identifies the products of a reaction between a carboxylic acid and an alcohol?
Alkene and water
Alkane and water
Alcohol and water
Ester and water
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