What type of forces do exist between the molecules of alkanes in liquid and solid states ?

Explanation

To answer the question regarding the types of forces that exist between the molecules of alkanes in their liquid and solid states, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Nature of Alkanes**:
- Alkanes are hydrocarbons that consist solely of carbon (C) and hydrogen (H) atoms. They are non-polar molecules due to the similar electronegativities of carbon and hydrogen.

2. **Understand Molecular Interactions**:
...