Why does the conductivity of a solution decreases with dilution ?

Explanation

**Step-by-Step Solution:**

1. **Understanding Conductivity**: Conductivity of a solution refers to its ability to conduct electricity, which is primarily due to the presence of ions in the solution. The more ions present, the higher the conductivity.

2. **Effect of Dilution**: When a solution is diluted, the volume of the solution increases while the amount of solute (ions) remains the same. This means that the concentration of ions decreases.

3. **Ion Density**: With dilution, the density of ions (number of ions per unit volume) decreases. Since conductivity is related to the number of charge carriers (ions) available to carry the electric current, a decrease in ion density leads to a decrease in conductivity.

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