The $X$ formed in the following reaction sequence and its structural type are respectively:
- A$Novolac$ - linear polymer
- B$Bakelite$ - cross linked polymer
- C$Novolac$ - cross linked polymer
- D$Bakelite$ - linear polymer
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Similar Questions
$A$ biodegradable polyamide can be made from:
Consider the Assertion and Reason given below.
Assertion $(A):$ Ethene polymerized in the presence of Ziegler-Natta catalyst at high temperature and pressure is used to make buckets and dustbins.
Reason $(R):$ High density polymers are closely packed and are chemically inert.
Choose the correct answer from the following:
Assertion $(A):$ Ethene polymerized in the presence of Ziegler-Natta catalyst at high temperature and pressure is used to make buckets and dustbins.
Reason $(R):$ High density polymers are closely packed and are chemically inert.
Choose the correct answer from the following:
Identify the monomer used to prepare $Orlon$.
The Novolac polymer has a mass of $963 \ g$. The number of monomer units present in it is $......$
Match the following:
List-$I$ (Polymer) List-$II$ (Used in Making) $A$. Urea-formaldehyde resin $I$. Safety Helmets $B$. Glyptal $II$. Gaskets $C$. Bakelite $III$. Laminated sheets $D$. Nylon-$6,6$ $IV$. Commercial fibres $E$. Phenol-formaldehyde $V$. Paints
Correct answer is:
| List-$I$ (Polymer) | List-$II$ (Used in Making) |
|---|---|
| $A$. Urea-formaldehyde resin | $I$. Safety Helmets |
| $B$. Glyptal | $II$. Gaskets |
| $C$. Bakelite | $III$. Laminated sheets |
| $D$. Nylon-$6,6$ | $IV$. Commercial fibres |
| $E$. Phenol-formaldehyde | $V$. Paints |
Correct answer is:
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