Exam code: 5070
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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The displayed formula of an ester is shown.
Which carboxylic acid and which alcohol react to form this ester?
carboxylic acid | alcohol | |
A | butanoic acid | methanol |
B | butanoic acid | butan-1-ol |
C | methanoic acid | methanol |
D | methanoic acid | butan-1-ol |
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