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प्रश्न
Match the substances in Column I with those in Column II.
| Column 1 | Column II | ||
| (a) | Tartaric acid | (i) | soap |
| (b) | Calcium hydroxide | (ii) | curd |
| (c) | Formic acid | (iii) | unripe mangoes |
| (d) | Sodium hydroxide | (iv) | ant’s sting |
| (e) | Lactic acid | (v) | lime water |
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उत्तर
| Column 1 | Column II | ||
| (a) | Tartaric acid | (iii) | unripe mangoes |
| (b) | Calcium hydroxide | (v) | lime water |
| (c) | Formic acid | (iv) | ant’s sting |
| (d) | Sodium hydroxide | (i) | soap |
| (e) | Lactic acid | (ii) | curd |
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संबंधित प्रश्न
You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution, respectively. If you are given only red litmus paper, how will you identify the contents of each test tube?
Write the neutralisation reaction between acids and bases in terms of the ions involved.
Write the chemical name from the given formula.
H2SO4
What is the difference between : An alkali and a metal hydroxide?
Write a balanced reaction for the following conversions (A, B, C, D)
\[\ce{Fe→[A]FeCl2 →[B]FeCO3→[C]Fe(NO3)2→[D]Fe(OH)2}\]
Acid mixed with base forms ______.
Match the chemical substances given in Column (A) with their appropriate application given in Column (B)
| Column (A) |
Column (B) |
| (A) Bleaching powder | (i) Preparation of glass |
| (B) Baking soda | (ii) Production of H2 and Cl2 |
| (C) Washing Soda | (iii) Decolourisation |
| (D) Sodium chloride | (iv) Antacid |
Lemon juice and vinegar taste ______ because they contain ______.
To Interpret:
CH4 and NH3, are not acids.
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 |
