Neoprene rubber is obtained by the polymerization of:

The Ziegler-Natta catalyst used for polymerisation of ethene and styrene is $TiCl_4 + (C_2H_5)_3Al$. The catalysing species (active species) involved in the polymerisation is

Which of the following polymers is obtained from $C_2F_4$?

Which raw material is used in the preparation of $Nylon-6$?

For the formation of terylene,the number of moles of ethylene glycol required per mole of terephthalic acid is

The monomers of buna-$S$ rubber are