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प्रश्न
Give one example in the following case:
A base which is not an alkali.
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उत्तर १
Ferric hydroxide
उत्तर २
Copper hydroxide [Cu(OH)2]
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संबंधित प्रश्न
Give one example in the following case:
A basic oxide which is soluble in water.
Give one example in the following case:
A hydroxide which is highly soluble in water.
Give one example in the following case:
A base which does not contain a metal ion.
Oxides of metals are acidic in nature.
Salts are neutral.
Bases are soapy to touch when they are dry.
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 |
Boojho, Paheli and their friend Golu were provided with a test tube each containing China rose solution which was pink in colour. Boojho added two drops of solution ‘A’ in his test tube and got dark pink colour. Paheli added 2 drops of solution ‘B’ to her test tube and got green colour. Golu added 2 drops of solution ‘C’ but could not get any change in colour. Suggest the possible cause for the variation in their results.
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 |
Which of the following pairs are weak bases?
