Which silicon compound is used in machinary (with moving parts) in a manner similar to the use of an allotrops a covalent network solid and a molecular solid?

Options

A. Silica gel
B. Zeolite
C. Silicone
D. Silane

Answer

To determine which silicon compound is used in machinery with moving parts in a manner similar to the use of allotropes, covalent network solids, and molecular solids, we can analyze the given options step by step.

### Step 1: Understand the question
The question asks for a silicon compound that is utilized in machinery with moving parts. It also mentions that this compound should have a usage similar to that of allotropes, covalent network solids, and molecular solids.

### Step 2: Analyze the options
The options provided are:
1. Silica gel
2. Zeolite
3. Silicon
4. Silane

### Step 3: Evaluate each option
- **Silica gel**: This is primarily used as a desiccant to control humidity and is not typically used in machinery with moving parts.

- **Zeolite**: This is a microporous mineral used mainly as a catalyst or ion-exchange agent in various chemical processes, not specifically in machinery with moving parts.

- **Silicon**: Silicon is a crucial element in the manufacture of semiconductors and is widely used in electronics, including microchips, which are integral to machinery and devices with moving parts (like computers and phones). It has properties of a covalent network solid, making it suitable for such applications.

- **Silane**: This is a chemical compound used mainly in the production of silicone polymers and is not directly used in machinery with moving parts.

### Step 4: Conclusion
Based on the analysis, the correct answer is **Silicon**. It is used in machinery with moving parts, particularly in electronic devices, similar to how allotropes (like diamond or graphite), covalent network solids, and molecular solids function.

### Final Answer
**Silicon** is the silicon compound used in machinery with moving parts.

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