The compound 1-Butene is modeled here.

what would happen for molecules of this compound to transform into polybutene?

A. Covalent bonds would need to form between the molecules.

B. Each molecule would need to gain at least one oxygen atom.

C. More double bonds would need to form in each molecule.

D. Hydrogen atoms would need to be transferred between molecules.

In given statement the molecules of 1-Butene are adding to each other forming a macromolecule called as Polybutene. Such type of reactions are called Polymerization reactions.

Polymerization reactions are those reactions in which small molecules called as monomers join together to form a large molecule also known as polymers. These reactions are done via different mechanisms like addition reaction, condensation reactions e.t.c.

Example:

Polybutene (polymer) is made up of 1-butene (monomers) through addition reaction in which the double bonds of 1-butene molecules are involved in the formation of new single covalent bond via acid catalyzed, base catalyzed or free radical mechanisms.

n H₂C=CH-CH₂-CH₃ → --[H₂C-CH(C₂H₅)]-n--

In above equation "n" represent large number, H₂C=CH-CH₂-CH₃ represent 1-Butene (monomer) and --[H₂C-CH(C₂H₅)]-n-- represent polybutene (polymer).