explain why we do not see this side product. write the reaction that removes side product as its formed

See explanation

Explanation:

Looking at the structure of the starting material, we can see that the carbocation intermediate is a tertiary carbocation.

The tertary carbocation is very stable.  Indeed, it is the most stable carbocation intermediate. As such, none of this other product is obtained due to this intermediate.

The mechanism of this reaction is shown in the image attached to this answer.

h let me think

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.