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Practice Acids, Bases and Salts – GK Quiz with Answers – Level 1

50 questions. Choose an option and see at once whether it was right, with the correct answer and a worked solution. No timer, and nothing to submit.

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  1. Question 1

    What colour does an acid turn blue litmus?

  2. Question 2

    What colour does phenolphthalein show in a basic solution?

  3. Question 3

    Which of the following is an olfactory indicator?

  4. Question 4

    The pH scale runs over which range?

  5. Question 5

    In 'pH', the letter 'p' comes from a German word meaning:

  6. Question 6

    Our body works within which pH range?

  7. Question 7

    Which acid is produced in our stomach to help in digestion?

  8. Question 8

    Milk of magnesia, used as an antacid, is chemically:

  9. Question 9

    Rainwater is called acid rain when its pH is below:

  10. Question 10

    Which is the hardest substance in the human body?

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