SiC is a/an

Options

A. Abrasive
B. A hard material
C. Covalent carbide
D. Diamond like structure

Answer

To determine what SiC (silicon carbide) is, we can analyze its properties and characteristics step by step.

### Step 1: Identify the Chemical Composition
SiC stands for silicon carbide, which is a compound made up of silicon (Si) and carbon (C).

**Hint:** Look at the chemical formula to understand the elements involved.

### Step 2: Determine the Structure
Silicon carbide has a crystal structure that resembles that of diamond, which contributes to its hardness.

**Hint:** Consider how the arrangement of atoms affects the physical properties of a material.

### Step 3: Analyze Physical Properties
SiC is known for being extremely hard and has a low density. This means it can withstand high levels of stress without breaking.

**Hint:** Think about how hardness and density can influence the applications of a material.

### Step 4: Understand its Nature
SiC is formed by the combination of silicon and carbon, which are both group 14 elements. Compounds formed by these elements are typically covalent in nature.

**Hint:** Recall the characteristics of covalent bonds and how they differ from ionic bonds.

### Step 5: Identify its Applications
Due to its hardness and abrasive nature, SiC is often used in cutting tools, abrasives, and as a semiconductor in electronic devices.

**Hint:** Consider the practical uses of materials with high hardness and strength.

### Conclusion
Based on the analysis, SiC is a covalent compound that is hard, has a diamond-like structure, is low in density, and is abrasive in nature.

### Final Answer
SiC is a covalent compound known as silicon carbide, characterized by its hardness and abrasive properties.

---