Identify a step growth polymer from following.

Step growth polymers are formed by condensation reactions between monomers containing two or more reactive functional groups, usually accompanied by the elimination of small molecules like water.

Bakelite is formed by the condensation reaction of phenol and formaldehyde, making it a step growth polymer.

Polyethene, Teflon, and Polyvinyl chloride are formed by addition polymerization (chain growth polymerization) of ethene, tetrafluoroethene, and vinyl chloride, respectively.

Answer: Bakelite