Acids, bases and pH Quiz
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5 questions, one answer each
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1. A solution turns universal indicator blue. What is it most likely to be?
- A. A strong acid
- B. A neutral solution
- C. A weak alkali
- D. A weak acid
2. What colour does litmus paper turn in lemon juice?
- A. Red
- B. Blue
- C. Green
- D. Colourless
3. Which of these is an alkali?
- A. Hydrochloric acid
- B. Copper(II) oxide
- C. Sodium hydroxide
- D. Ethanol
4. What are the products of neutralising an acid with an alkali?
- A. Salt and hydrogen
- B. A salt and water
- C. Water only
- D. A different acid and a base
5. A student adds universal indicator to a liquid and sees green. What can she conclude?
- A. It is a strong acid
- B. It is a strong alkali
- C. It is neutral
- D. It is corrosive