The correct match between Item-I and Item-II is :
Item - I Item - II (a) High density polythene (I) Peroxide catalyst (b) Polyacrylonitrile (II) Condensation at high temperature & pressure (c) Novolac (III) Ziegler-Natta Catalyst (d) Nylon 6 (IV) Acid or base catalyst
| Item - I | Item - II | ||
| (a) | High density polythene | (I) | Peroxide catalyst |
| (b) | Polyacrylonitrile | (II) | Condensation at high temperature & pressure |
| (c) | Novolac | (III) | Ziegler-Natta Catalyst |
| (d) | Nylon 6 | (IV) | Acid or base catalyst |
Show Hint
- (a) \(\rightarrow\) (IV), (b) \(\rightarrow\) (II), (c) \(\rightarrow\) (I), (d) \(\rightarrow\) (III)
- (a) \(\rightarrow\) (III), (b) \(\rightarrow\) (I), (c) \(\rightarrow\) (IV), (d) \(\rightarrow\) (II)
- (a) \(\rightarrow\) (II), (b) \(\rightarrow\) (IV), (c) \(\rightarrow\) (I), (d) \(\rightarrow\) (III)
- (a) \(\rightarrow\) (III), (b) \(\rightarrow\) (I), (c) \(\rightarrow\) (II), (d) \(\rightarrow\) (IV)
The Correct Option is B
Solution and Explanation
(b) Polyacrylonitrile is made by free-radical addition polymerisation of acrylonitrile using a peroxide initiator: (I).
(c) Novolac is formed from phenol and formaldehyde (less than one equivalent) in the presence of an acid (or base) catalyst: (IV).
(d) Nylon 6 is formed from caprolactam by heating with water at high temperature and pressure (ring-opening condensation): (II).
So (a)-(III), (b)-(I), (c)-(IV), (d)-(II).
Answer: (2) (a) → (III), (b) → (I), (c) → (IV), (d) → (II)
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