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प्रश्न
Which is more acidic : a solution of pH = 2 or a solution of pH = 6?
उत्तर
A solution with a pH of 2 is more acidic than a solution with a pH of 6, because an acidic solution has a pH value of less than 7. As the pH value decreases from 7, the acidity of a solution increases because there is an increase in the concentration of hydrogen ions (H+ ions).
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संबंधित प्रश्न
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| Substance | pH | Substance | pH |
| Apples | 3.0 | Salt | 7.0 |
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| Black coffee | 5.0 | Toothpaste | 9.0 |
| Household ammonia | 12.0 | Vinegar | 3.0 |
| Lemon juice | 2.5 | Washing soda | 11.5 |
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