Give one example of a non-ionic detergent.

Explanation

### Step-by-Step Solution:

1. **Understanding Detergents**: Detergents are cleaning agents that are primarily made from synthetic materials such as petroleum, hydrocarbons, and coal.

2. **Types of Detergents**: There are three main types of detergents based on their ionic nature: cationic, anionic, and non-ionic.
- Cationic detergents have a positively charged surface-active part.
- Anionic detergents have a negatively charged surface-active part.
- Non-ionic detergents do not possess any charge.
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