How many types of H atoms are present in isobutane?

Explanation

To determine how many types of hydrogen atoms are present in isobutane, we will analyze the structure of isobutane and classify the hydrogen atoms based on the degree of the carbon atoms they are attached to.

### Step-by-Step Solution:

1. **Identify the Structure of Isobutane**:
Isobutane, also known as methylpropane, has the molecular formula C4H10. Its structure can be represented as:
```
CH3
...