Which of the following is a good conductor of electricity ?

Options

A. Distilled water
B. Cooking oil
C. Tap water
D. Sugar solution

Answer

**Step-by-Step Solution:**

1. **Understanding Conductors and Insulators:**
- Conductors are materials that allow electricity to flow through them easily, while insulators do not. To determine whether a substance is a good conductor, we need to check if it contains ions or charge carriers.

2. **Analyzing the Given Options:**
- The options provided are distilled water, cooking oil, and sugar solution. We need to evaluate each of these substances to see if they can conduct electricity.

3. **Evaluating Distilled Water:**
- Distilled water is pure water (H2O) and does not contain any dissolved ions. Therefore, it does not conduct electricity well.

4. **Evaluating Cooking Oil:**
- Cooking oil is a non-polar substance and does not contain ions. Hence, it is also a poor conductor of electricity.

5. **Evaluating Sugar Solution:**
- A sugar solution contains sugar dissolved in water. While sugar can dissolve in water, it does not dissociate into ions. Therefore, it also does not conduct electricity well.

6. **Identifying a Good Conductor:**
- Among the options, the only one that can conduct electricity is tap water. Tap water contains impurities and dissolved salts, which dissociate into ions (H+ and OH- ions), allowing it to conduct electricity.

7. **Conclusion:**
- The answer to the question is that tap water is a good conductor of electricity.

**Final Answer:**
Tap water is a good conductor of electricity.

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