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Questions and Answers
What is a base according to the text?
What is a base according to the text?
- A substance that tastes sour in water and turns blue litmus red
- A neutral material that has no effect on litmus in an aqueous solution
- A material that reacts with an acid to produce water and salt (correct)
- A substance that, when dissolved in water, dissociates into ions almost entirely
What is a salt formed from according to the text?
What is a salt formed from according to the text?
- When an acid reacts with a base
- When an acid and a base react to produce water
- When hydrogen ions in an acid are replaced by a metal or an ammonium ion (correct)
- When a base reacts with an acid
How are acids classified based on their taste and effect on litmus?
How are acids classified based on their taste and effect on litmus?
- Tastes sour in water, turns blue litmus red, and neutralises bases (correct)
- Dissociates into ions almost entirely when dissolved in water
- Neutral material with no effect on litmus in an aqueous solution
- Tastes bitter, turns red litmus blue, or neutralises acids
What characterizes ionisable compounds according to the text?
What characterizes ionisable compounds according to the text?
Where are bases commonly found according to the text?
Where are bases commonly found according to the text?
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