Which solution will show highest resistance during the passage of current

Options

A. 0.05 N NaCl
B. 2 N NaCl
C. 0.1 N NaCl
D. 1 N NaCl

Explanation

To determine which solution will show the highest resistance during the passage of current, we can follow these steps:

### Step 1: Understand the relationship between resistance and conductance
Resistance (R) is inversely proportional to conductance (G). This means that as conductance increases, resistance decreases, and vice versa. The formula can be expressed as:
\[ R = \frac{1}{G} \]

### Step 2: Define conductance in terms of electrolytic dissociation
Conductance is directly proportional to the number of ions (or anhydrated molecules) present in the solution. More ions in the solution lead to higher conductance.

### Step 3: Analyze the concentration of ions in solutions
Different solutions will have different concentrations of ions. For example, a solution of NaCl will dissociate into Na⁺ and Cl⁻ ions, contributing to the overall conductance. The more ions present, the higher the conductance, and thus the lower the resistance.

### Step 4: Identify the solution with the highest resistance
To find the solution with the highest resistance, we need to identify the solution with the lowest concentration of dissociated ions. Solutions with fewer ions will have higher resistance.

### Step 5: Compare different solutions
If we consider a few common solutions, such as:
- Distilled water (very low ion concentration)
- A dilute NaCl solution (some ion concentration)
- A concentrated NaCl solution (high ion concentration)

The distilled water will have the highest resistance because it has the least number of ions present compared to the other solutions.

### Conclusion
Therefore, the solution that will show the highest resistance during the passage of current is distilled water, as it has the lowest concentration of dissociated ions.

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