Question

If 1-propanol is dehydrated (H2SO4 -->) what is the structure?

Answer 1

The major product is the one that follows the more stable cabocation, but think about this one, you have a primary alcohol, which is HIGHLY unfavorable (you do not have primary carbocations), so think about it.

It's a bit straight forward. Look at where your \(\beta\) hydrogens. That will also help.