Iodine crystals are placed in which category among the following

Options

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

Answer

To determine the category in which iodine crystals belong, we can analyze the properties and characteristics of different types of crystals.

### Step-by-Step Solution:

1. **Understanding Crystal Types**:
- **Ionic Crystals**: These are formed by the electrostatic attraction between cations (positively charged ions) and anions (negatively charged ions). Examples include NaCl.
- **Metallic Crystals**: These consist of metal atoms that share a "sea" of delocalized electrons, which allows for conductivity and malleability.
- **Molecular Crystals**: These are formed from molecules held together by intermolecular forces (like Van der Waals forces). They can be polar or non-polar.
- **Covalent Crystals**: These consist of a network of atoms connected by covalent bonds, like diamond or silicon carbide.

2. **Analyzing Iodine (I2)**:
- Iodine exists as diatomic molecules (I2) in its solid state.
- Since iodine is a non-metal, it does not form ionic bonds.
- Iodine does not have metallic properties, as it is not a metal.
- The bonds in iodine are covalent within the I2 molecule, but the solid structure is held together by weak Van der Waals forces between the molecules.

3. **Conclusion**:
- Since iodine crystals are composed of I2 molecules, and these molecules are held together by intermolecular forces, iodine crystals are classified as **molecular crystals**.

### Final Answer:
Iodine crystals are placed in the category of **molecular crystals**.