3, 3-Dimethylbut-1-ene reacts with HI to form 3-iodo-2, 2-dimethylbutane and 2-iodo-2, 3-dimethylbutane.

Explanation

To solve the problem of why 3,3-Dimethylbut-1-ene reacts with HI to form 3-iodo-2,2-dimethylbutane and 2-iodo-2,3-dimethylbutane, we can break it down into the following steps:

### Step 1: Understanding the Reactants
3,3-Dimethylbut-1-ene is an alkene with the following structure:
- It has four carbon atoms (but-1-ene).
- There are two methyl groups attached to the third carbon.

The structure can be represented as:
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