Give one example for each of the following : (i) An artificial sweetener whose use is limited to cold drinks , (ii) A non-ionic detergent , (iii)A pain reliever for relief from severe post-operative pain or pain due to terminal cancer.

Explanation

### Step-by-Step Solution:

1. **Identify an artificial sweetener whose use is limited to cold drinks:**
- **Example:** Aspartame
- **Explanation:** Aspartame is a low-calorie artificial sweetener commonly used in various cold beverages. It is known for its sweetness and is often found in diet sodas and other sugar-free drinks.

2. **Identify a non-ionic detergent:**
- **Example:** Triton X-100
...