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प्रश्न
Phenolphthalein gives ______ colour with lime water.
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उत्तर
Phenolphthalein gives pink colour with lime water.
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संबंधित प्रश्न
What do you understand by an alkali?
Give one example in the following case:
A hydroxide which is highly 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:
A base which is not an alkali.
Give one example in the following case:
A base which does not contain a metal ion.
Chemical formula of calcium oxide is _______
Match the important chemicals given in Column (A) with the chemical formulae given in Column (B)
| Column (A) | Column (B) |
| (a) Plaster of Paris | Ca(OH)2 |
| (b) Gypsum | CaSO4. 1/2 H2O |
| (c) Bleaching Powder | CaSO4.2H7O |
| (d) Slaked Lime | CaOCl2 |
Which of the following pairs are weak bases?
The nature of toothpaste commonly used is ______ in nature.
