Iodine crystals are -

Options

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

Answer

To determine the type of crystals that iodine forms, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Chemical Form of Iodine**:
- Iodine exists in the form of diatomic molecules, represented as \( I_2 \).

2. **Classify Iodine**:
- Iodine is classified as a non-metal. Non-metals can form different types of solids based on their bonding characteristics.

3. **Understand the Types of Solids**:
- **Metallic Solids**: Composed of metal atoms held together by metallic bonds.
- **Ionic Solids**: Composed of positively and negatively charged ions held together by strong electrostatic forces.
- **Molecular Solids**: Composed of molecules held together by intermolecular forces (such as Van der Waals forces).
- **Covalent Solids**: Composed of atoms held together by covalent bonds in a network structure.

4. **Determine the Type of Solid for Iodine**:
- Since iodine exists as \( I_2 \) molecules, the bonding between these molecules is due to intermolecular forces (specifically, London dispersion forces).
- Therefore, iodine crystals are classified as **molecular solids**.

5. **Select the Correct Option**:
- Based on the classification, the answer to the question is that iodine crystals are **molecular solids**.

### Final Answer:
Iodine crystals are molecular solids.

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