Question

name two types plastics on heating, which we will use day to day life

Answer 1

bakelite is used to make handles on appliances and melamote is used to make electrical switches

Answer 2

Plastic  can be separated into two primary categories thermoset and thermoplastic

Thermoset plastics are those that when cooled and hardened retain their shape and cannot return to original form.

Thermoplastics are less hard than thermoset. They can become soft when heated and can return to their original form. thay can easily molded to be formed into fibers and packaging.