Which of the following polymers has a linear structure?

Which of the following sets contains only addition polymers?

Which of the following is a copolymer?

Which of the following is not an example of a chain growth polymer?

Identify the fibre $(X)$ and elastomer $(Y)$ from the following:

Write the names of monomers of the following polymers:
$(i)$ $-(NH-(CH_2)_6-NH-CO-(CH_2)_4-CO)_n-$
$(ii)$ $-(CO-(CH_2)_5-NH)_n-$
$(iii)$ $-(CF_2-CF_2)_n-$