The monomer, $\text{CH}_3\text{CH}=\text{CHCH}_3$, can be used to form an addition polymer. In this addition polymer, the carbon atoms are linked together in a chain by C-C single bonds. Each carbon atom in the chain is also attached to at least one further atom or group of atoms. These are known as side groups. Which statement correctly describes the carbon atoms in the polymer chain formed from $\text{CH}_3\text{CH}=\text{CHCH}_3$?
- AEvery carbon atom in the chain has one $-\text{CH}_3$ and one hydrogen atom as side groups.
- BEvery carbon atom in the chain is joined to a $\text{CH}_3$-$\text{CH}$- side group.
- CEvery carbon atom in the chain is joined to either two $-\text{CH}_3$ or to two hydrogen atoms as side groups.
- DEvery carbon atom in the chain is joined to hydrogen atoms only as side groups.