Question

why is ethylene an unsaturated hydrocarbon?​

Answer 1

Answer:

Since there is a double bond in its molecule, ethylene is very reactive. Ethylene, C2H4, is a colorless gas. It is the simplest alkene. Because it contains a double bond, it it called an unsaturated hydrocarbon or an olefin.

Answer 2

Answer:

Here is your answer mate:

Since there is a double bond in its molecule