___________ and graphite are two lustrous non-metals.

Options

A. Iodine
B. Chlorine
C. Sulphur
D. Mercury

Answer

To solve the question, we need to identify another lustrous non-metal alongside graphite.

### Step-by-Step Solution:

1. **Understanding Non-Metals**: Non-metals are elements that generally do not conduct electricity, have a dull appearance, and are brittle in solid form. However, some non-metals can exhibit lustrous properties.

2. **Identifying Graphite**: Graphite is a form of carbon and is known for its lustrous appearance. It is unique among non-metals because it can conduct electricity and has a shiny surface.

3. **Analyzing the Options**: The options provided are:
- A) Iodine
- B) Chlorine
- C) Sulphur
- D) Mercury

4. **Evaluating Each Option**:
- **Iodine**: Iodine can appear shiny and has a lustrous appearance in its solid form.
- **Chlorine**: Chlorine is a gas at room temperature and does not exhibit a lustrous appearance.
- **Sulphur**: Sulphur is typically dull and does not have a shiny surface.
- **Mercury**: Mercury is a metal, not a non-metal.

5. **Conclusion**: Among the options, iodine is the only non-metal that exhibits a lustrous property similar to graphite.

### Final Answer:
Iodine and graphite are two lustrous non-metals.

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