Question

name this please

Answer 1

The second one can be either or:

1-butyne or but-1-yne or ethylacettylene
the first one is:
2-propyl-1-heptene or 2-propyl hep-1-ene

Answer 2

Careful: the main chain in the first one has only 5 carbon atoms.

Answer 3

2 propyl-1-butene*