Carboxylic Acids Quiz
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5 questions, one answer each
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1. Which functional group is found in carboxylic acids?
- A. −OH
- B. −COOH
- C. C=C
- D. −COO−
2. What type of solution does ethanoic acid form when dissolved in water?
- A. Alkaline
- B. Neutral
- C. Acidic
- D. Basic
3. What gas is produced when a carboxylic acid reacts with a carbonate?
- A. Hydrogen
- B. Oxygen
- C. Carbon dioxide
- D. Chlorine
4. Why are carboxylic acids classed as weak acids?
- A. They are always dilute
- B. They do not ionise completely in water
- C. They cannot react with metals
- D. They have no hydrogen ions at all
5. Two acids, hydrochloric acid and ethanoic acid, have the same concentration. Which correctly compares their pH?
- A. They have identical pH because concentration is the same
- B. Ethanoic acid has a lower pH because it is a carboxylic acid
- C. Hydrochloric acid has a lower pH because it is a strong acid that ionises fully
- D. Ethanoic acid has a pH above 7