The pH scale and indicators

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Quiz
What pH is neutral?A7B0C14D1

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Questions and answers

· 6 questionsShow answers
  1. 1. What pH is neutral?
    • Correct answer: 7
    • 0
    • 14
    • 1
  2. 2. What is a solution with a pH of 2?
    • Correct answer: A strong acid
    • A weak acid
    • Neutral
    • A strong alkali
  3. 3. What is a solution with a pH of 13?
    • Correct answer: A strong alkali
    • A weak alkali
    • Neutral
    • A strong acid
  4. 4. What colour does universal indicator turn in a strong acid?
    • Correct answer: Red
    • Purple
    • Green
    • Blue
  5. 5. An acid reacts with an alkali to make a salt and water. What is this called?
    • Correct answer: Neutralisation
    • Combustion
    • Oxidation
    • Evaporation
  6. 6. Which of these has the lowest pH?
    • Correct answer: Lemon juice
    • Pure water
    • Soap
    • Bleach

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