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प्रश्न
While playing in a park, a child was stung by a wasp. Some elders suggested applying paste of baking soda and others lemon juice as remedy. Which remedy do you think is appropriate and why?
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उत्तर
Wasp sting injects a liquid into the skin which is acidic in nature. Hence, baking soda is applied as it is basic in nature and neutralises the acid.
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संबंधित प्रश्न
Name one natural source of the following acid:
Tartaric acid
How is the neutralisation of a carbonate with an acid different from the neutralisation of an oxide or a hydroxide?
Which chemical is injected into the skin of a person during an ant’s sting?
How can the effect of these stings be neutralised?
What type of ions are formed?
When an acid is dissolved in water.
Give two examples of the following:
oxy-acid
Which acid is used for getting chloride salt?
Match the acids given in column (A) with their correct source given in column (B)
| Column (A) | Column (B) |
| (a) Lactic acid | Tamarind |
| (b) Acetic acid | Lemon |
| (c) Citric acid | Vinegar |
| (d) Tartaric acid | Curd |
Turmeric is a natural indicator. On adding its paste to acid and base separately, which colours would be observed
Name the acid present in the given table.
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 |
| 4. | Double salts | d. | Acidic soil |
| 5. | Silver chloride | e. | Calcium phosphate |
| f. | Alkaline soil |
