Question

Match materials given in Column I with the polymers given in Column II.

	Column I		Column II
(i)	Acrilan	(a)
(ii)	Polystyrene	(b)
(iii)	Neoprene	(c)
(iv)	Novolac	(d)
(v)	Buna-N	(e)
		(f)

Answer 1

Part (i):
The monomer of Acrilan is acrylonitrile (cyanoethene).
The repeating unit of Acrilan polymer is:

Part (ii):
The monomer of polystyrene is styrene.
The repeating unit of polystyrene is:

Part (iii):

Neoprene is formed by the free radical polymerisation of chloroprene.

The repeating unit of neoprene is:

Part (iv):
The monomers of Novolac are phenol and formaldehyde.

The repeating unit of Novolac is:

Part (v):

The monomers of Buna-N are 1,3-butadiene and acrylonitrile.

The repeating unit of Buna-N is:

	Column I		Column II
(i)	Acrilan	(d)
(ii)	Polystyrene	(a)
(iii)	Neoprene	(b)
(iv)	Novolac	(e)
(v)	Buna-N	(c)
		(f)