Buna-$N$ synthetic rubber is a copolymer of:
- A$CH_2=CH-CH=CH_2$ and $C_6H_5-CH=CH_2$
- B$CH_2=CH-CN$ and $CH_2=CH-CH=CH_2$
- C$CH_2=CH-CN$ and $CH_2=CH-C(CH_3)=CH_2$
- D$CH_2=CH-C(Cl)=CH_2$ and $CH_2=CH-CH=CH_2$
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Which from the following polymers does $NOT$ contain either —$COO$— or —$CONH$— linkage in it?
Soft drinks and baby feeding bottles are generally made of $.....$.
Easy
View SolutionPhenol and formaldehyde undergo condensation to give a polymer $(A)$ which on heating with formaldehyde gives a thermosetting polymer $(B)$. Name the polymers. Write the reactions involved in the formation of $(A)$. What is the structural difference between the two polymers?
In which of the following pairs is the polymer correctly matched with the intermolecular forces present in them?
$A$. Neoprene --- Weak intermolecular forces $B$. Terylene --- Hydrogen bonding $C$. Polystyrene --- Very weak intermolecular forces $D$. Polythene --- Hydrogen bonding
| $A$. Neoprene --- Weak intermolecular forces | $B$. Terylene --- Hydrogen bonding |
| $C$. Polystyrene --- Very weak intermolecular forces | $D$. Polythene --- Hydrogen bonding |
Which of the following is a polyamide?
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