Question

-C-C=C-C-
Assuming the carbons have all paired their spare electrons. what is the name of this hydrocarbon?
Can someone please help?

Answer 1

We know it is an alkene. Right?

Answer 2

Since there are 4 carbons, that would make it butane.

Answer 3

But we have to specify where the double bond is located.

Answer 4

It will be the 2nd carbon in either direction.

Answer 5

So 2-butene

Answer 6

I didn't mean butane earlier, it is butene

Answer 7

Is it part of a longer chain, treated as a substituent or is it just those carbons?