Classify the following as linear, branched, or cross-linked polymer-

Bakelite

Classify the following as linear, branched or cross-linked polymers. (linear/branched/cross-linked)

Nylon

Classify the following as linear, branched or cross-linked polymers.

$\mathrm{LDPE}$

Classify the following as linear, branched or cross-linked polymers.

$\mathrm{HDPE}$