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प्रश्न
Choose the most appropriate answer from
(SO2, SiO2, Al2O3, CO, MgO, Na2O)
A basic oxide.
एक शब्द/वाक्यांश उत्तर
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उत्तर
MgO
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संबंधित प्रश्न
What do you understand by an alkali?
Give one example in the following case:
A hydroxide which is insoluble in water.
Why indicator does not get affected by salt?
State the term defined by the following sentence:
A soluble base.
Sodium hydroxide is a ______.
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 |
On adding phenolphthalein indicator to a colourless solution, no change is observed. What is the nature of this solution?
Phenolphthalein gives ______ colour with lime water.
Match the following:
| 1. | Sulphuric acid | a. | Weak base |
| 2. | Sodium hydroxide | b. | Strong acid |
| 3. | Acetic acid | c. | Strong base |
| 4. | Ammonium hydroxide | d. | Weak acid |
What are bases?
