Question

The correct match between the item-I and item-II is:

Item I	Item II
High density polyethene	Peroxide catalyst
Polyacrylonitrile	condensation at high temperature and pressure
novolac	Ziegler-Natta catalyst
nylon 6	acid or base catalyst

A.) (a) – (III), (b)- (I), (c)- (II), (d) – (IV)
B.) (a) – (IV), (b)- (II), (c)- (I), (d) – (III)
C.) (a) – (II), (b)- (IV), (c)- (I), (d) – (III)
D.) (a) – (III), (b)- (I), (c)- (IV), (d) – (II)

Answer 1

. To solve this type of question it is important to have prior knowledge about the compound present in both the list. The compound present in list II is the condition or the catalyst required for the production of compounds in list I.

Complete step by step answer:
In high density polyethene basically two types of catalyst are used in the manufacturing i.e. a Ziegler-Natta catalyst which has an organometallic catalyst which is titanium compound with an aluminium alkyl and an inorganic compound which is known as Phillips-type catalyst.
The addition of polymerization of acrylonitrile in the presence of the peroxide catalyst helps in the production of polyacrylonitrile. Poly acrylonitrile is used as a substitute in the production of wool for making commercial fiber such as Orlon or acrilan.
Novolac is obtained from an acid or a base. The catalyst used in the formation of novolac is formaldehyde and phenol.
Nylon 6 is produced by heating caprolactam with water. The condition required for the production of nylon 6 is high temperature and pressure.
So, the correct answer is “Option D”.

Note: Catalyst a substance which is added to a reaction to increase the rate of the reaction. The catalyst itself never gets consumed in the reaction. There are two types of catalyst positive catalyst, negative catalyst also known as inhibitors. Catalyst speeds up the reaction by reducing the activation energy or sometimes it changes the mechanism of the reaction.