O LevelChemistryCambridge (CIE)Exam Questions11. Organic Chemistry11.7 Carboxylic Acids

Carboxylic Acids (Cambridge (CIE) O Level Chemistry): Multiple Choice Questions

Exam code: 5070

2 hours10 questions

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11.7 Carboxylic Acids

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1
1 mark

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.

Choose your answer

2
1 mark

A carboxylic acid reacts with an alcohol in the presence of an acid catalyst.

Which products are formed?

  • Alkene and water

  • Alkane and water

  • Alcohol and water

  • Ester and water

Choose your answer

1
1 mark

The displayed formula of an ester is shown.

H–C(=O)–O–C–C–C–C–H. Carbonyl carbon double-bonded to O and single-bonded to O and H. Four-carbon chain attached; terminal C has three H, internal C each two H.

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

    Choose your answer