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प्रश्न
Chemical formula of calcium oxide is _______
रिकाम्या जागा भरा
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उत्तर
Chemical formula of calcium oxide is CaO.
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संबंधित प्रश्न
What do you understand by an alkali?
Give one example in the following case:
A basic oxide which is insoluble in water.
Main constituent of base is ______.
Metal corrodes due to salts.
Salts are neutral.
State the term defined by the following sentence:
A soluble base.
Bases are soapy to touch when they are dry.
All bases are alkalis.
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 |
______ alkali has a relatively high percentage of alkali in its aqueous solution.
