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प्रश्न
Main constituent of base is ______.
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उत्तर
Main constituent of base is OH− ion.
संबंधित प्रश्न
What do you understand by an alkali?
Give one example in the following case:
A basic oxide which is insoluble in water.
Metal corrodes due to salts.
Write the balanced equation for the reaction of:
A named acid and a named alkali.
Bases are ______ in taste.
A solution changes the colour of turmeric indicator from yellow to red. The solution is ______.
On adding phenolphthalein indicator to a colourless solution, no change is observed. What is the nature of this solution?
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 |
Phenolphthalein gives ______ colour with lime water.
Bases are chemical substances that are corrosive and ______ in taste.
