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प्रश्न
Tooth decay is caused by the presence of a base.
पर्याय
True
False
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उत्तर
This statement is False.
Explanation:
Tooth decay is caused by the presence of an acid.
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संबंधित प्रश्न
What colour does phenolphthalein indicator turn when added to an alkali (such as sodium hydroxide)?
Name the gas evolved when zinc granules are treated/heated with:
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(a) acetic acid
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(c) hydrochloric acid
(d) sulphuric acid
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a) Na2CO3
(b) Na2SO4
(c) NaCl
(d) (NH4)2 SO4
Name the acid present in vinegar.
Acid mixed with base forms ______.
State whether the following statement is true or false. Correct the false statement.
Lemon water is basic in nature.
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Complete the following equation.
Mg+ ______ → ______ + H2.
Match the following:
| 1. | The hardest substance in our body | a. | Aluminum phosphate |
| 2. | Citrus fruits | b. | Potash alum |
| 3. | Rice plant | c. | Insoluble in water |
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| f. | Alkaline soil |
