Wax is an example of -

Options

A. Ionic crystal
B. Covalent crystal
C. Molecular crystal
D. Metallic crystal

Answer

To determine what type of crystal wax is an example of, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Composition of Wax**:
- Wax is primarily composed of long-chain hydrocarbons, which can be represented by the general formula \( C_nH_{2n+2} \), where \( n \) is typically greater than 17.

2. **Analyze the Types of Crystals**:
- There are several types of crystals based on the nature of the bonding between their constituent particles:
- **Ionic Crystals**: Formed by the electrostatic attraction between positive and negative ions.
- **Covalent Crystals**: Formed by atoms held together by covalent bonds, typically between non-metals.
- **Molecular Crystals**: Formed by molecules held together by intermolecular forces (like van der Waals forces).
- **Metallic Crystals**: Formed by metal atoms held together by metallic bonds.

3. **Determine the Type of Crystal for Wax**:
- Since wax consists of hydrocarbons (non-metal molecules), it does not contain ions, which rules out ionic crystals.
- Wax does not have covalent bonds between atoms in a lattice structure, so it is not a covalent crystal.
- The structure of wax is based on molecules that are held together by intermolecular forces, which fits the definition of molecular crystals.
- Wax is not metallic as it does not consist of metal atoms.

4. **Conclusion**:
- Based on the analysis, wax is classified as a **molecular crystal** because it is made up of molecules that interact through intermolecular forces.

### Final Answer:
Wax is an example of a **molecular crystal**.

---