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Questions and Answers
Which substance tastes sour, turns blue litmus paper red, and reacts with metals to produce hydrogen gas?
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?
What is the pH value of a neutral substance?
- 5
- 10
- 0
- 7 (correct)
- 14
Which of the following is a salt?
Which of the following is a salt?
- Sodium hydroxide
- Baking soda
- Table salt (correct)
- Vinegar
- Ammonia
