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प्रश्न
State the term defined by the following sentence:
A soluble base.
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उत्तर
Alkali
संबंधित प्रश्न
What do you understand by an alkali?
Give one example in the following case:
A base which is not an alkali.
Give one example in the following case:
An oxide which is a base.
Oxides of metals are acidic in nature.
State whether the following statement is true or false. Correct the false statement.
Lime water turns red litmus blue.
Look at figure which shows solutions taken in test tubes A, B, C and D. What colour is expected when a piece of red litmus paper is dropped in each test tube? Nature of the solutions is given in the table for your help.
| Test tube | Nature of Solution | Change in colour of red litmus |
| A | Neutral | |
| B | Basic | |
| C | Acidic | |
| D | Neutral |
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 |
All bases are alkalis but all alkalis are not bases.
Which of the following solutions do not conduct electricity?
Water-soluble bases are called ______.
