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प्रश्न
Give one example in the following case:
A basic oxide which is soluble in water.
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उत्तर
Sodium oxide (Na2O)
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संबंधित प्रश्न
Give one example in the following case:
A base which is not an alkali.
Salts are neutral.
What is the term defined by the following?
A base which is soluble in water.
Sodium hydroxide is a ______.
All bases are alkalis.
When the soil is too basic, plants do not grow well in it. To improve its quality what must be added to the soil?
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 |
A small amount of copper oxide was taken in a beaker and dilute hydrochloric acid was added with continuous stirring of the solution. Name the compound formed and state the colour of its solution. Write the balanced chemical equation for the reaction that occurs. Based on the reaction, state the nature (acidic/basic) of copper oxide.
