Acids
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Questions and Answers

Which substance tastes sour, turns blue litmus paper red, and reacts with metals to produce hydrogen gas?

  • Water
  • Bleach
  • Vinegar
  • Lemon juice
  • Hydrochloric acid (correct)
  • What is the pH value of a neutral substance?

  • 5
  • 10
  • 0
  • 7 (correct)
  • 14
  • Which of the following is a salt?

  • Sodium hydroxide
  • Baking soda
  • Table salt (correct)
  • Vinegar
  • Ammonia
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