Is the below statement correct or wrong

In crystals, the state of complete order and of lowest energy is formed at `0^(@)C`.

Explanation

To determine whether the statement "In crystals, the state of complete order and of lowest energy is formed at `0^(@)C`" is correct or wrong, we need to analyze the conditions for achieving complete order in crystalline solids.

### Step-by-Step Solution:

1. **Understanding Crystalline Order**: Crystals are characterized by a highly ordered structure where the arrangement of particles (atoms, ions, or molecules) is repeated in a three-dimensional pattern.

2. **Temperature and Order**: The state of complete order in a crystal is closely related to temperature. As temperature decreases, the kinetic energy of the particles also decreases, allowing them to settle into a more ordered arrangement.

3. **Absolute Zero**: The theoretical state of complete order and lowest energy is achieved at absolute zero, which is 0 Kelvin (K). At this temperature, the motion of particles is minimal, and they occupy their lowest energy states.

4. **Conversion of Temperature**: To clarify, 0 degrees Celsius (0°C) is equivalent to 273.15 K. Therefore, 0°C is not the same as absolute zero.

5. **Conclusion**: Since the statement claims that complete order is achieved at 0°C, which is not true (as it should be at 0 K), we conclude that the statement is incorrect.

### Final Answer:
The statement is **wrong**. The state of complete order and lowest energy in crystals is formed at **0 Kelvin**, not at **0 degrees Celsius**.

---