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Question
What do you understand by an alkali?
One Line Answer
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Solution
An alkali is a basic hydroxide which when dissolved in water produces hydroxyl ions (OH−) as the only negatively charged ions.
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RELATED QUESTIONS
Give one example in the following case:
A basic oxide which is soluble in water.
Give one example in the following case:
A basic oxide which is insoluble in water.
Give one example in the following case:
A hydroxide which is insoluble in water.
Give one example in the following case:
An oxide which is a base.
State the term defined by the following sentence:
A soluble base.
What are the similarities between acids and bases?
Phenolphthalein gives ______ colour with lime water.
Match the following:
| 1. | Wasp sting | a. | Milk of magnesia |
| 2. | Common salt | b. | Acetic acid |
| 3. | Organic acid | c. | Sodium chloride |
| 4. | Antacid | d. | Vinegar |
Match the following:
| 1. | Sulphuric acid | a. | Weak base |
| 2. | Sodium hydroxide | b. | Strong acid |
| 3. | Acetic acid | c. | Strong base |
| 4. | Ammonium hydroxide | d. | Weak acid |
All bases are alkalis but all alkalis are not bases.
