What is an asymmetric or chiral carbon?

Explanation

### Step-by-Step Solution:

1. **Definition of Asymmetric or Chiral Carbon**:
- An asymmetric or chiral carbon is defined as a carbon atom that is bonded to four different atoms or groups. This unique arrangement allows for the existence of two non-superimposable mirror images, known as enantiomers.

2. **Understanding Chirality**:
- Chirality is a property of a molecule that makes it non-superimposable on its mirror image. This means that if you were to create a mirror image of the molecule, you would not be able to align the two perfectly, indicating that the molecule has a distinct "handedness."

...