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| Q.17 | What happens when an acid or a base is mixed with water? | |
| Ans | 1. Decrease in the concentration of ions (H2O+/OH–) per unit volume | |
| 2. Decrease in the concentration of ions (H3O+/OH–) per unit volume | ||
| 3. increase in the concentration of ions (H3O+/OH–) per unit volume | ||
| 4. Decrease in the concentration of ions (H3O+/OH–) per litre volume |
Correct Ans: 2
