you are supposed to show that you have attempted to solve the problem.
this is just a warning. In future, I will lock or delete your thread if you violate this forum rule again.
here's a hint for you.
1-hexane: alkane, free radical substitution
2-cyclohexene: alkene: electrophilic addition
3-methylbenzene: aromatic, electrophilic aromatic substitution
4-benzene: what is that?