Question

What is the special feature of the structure of ethene?

Answer 1

In ethene, carbon atoms form single covalent bonds with two hydrogen atoms and double bonds with other carbon atoms. There are four C–H single covalent bonds and one C–C double bond.

It is a planar (flat) molecule. All bond angles (H–C–H) and (H–C=C) are 120°, as shown in the figure.