Which of the following statements is not correct?
- ABuna-$S$ is a copolymer of butadiene and styrene.
- BNatural rubber is a $1, 4-$polymer of isoprene.
- CIn the vulcanization process,sulfur forms cross-links between chains,making rubber hard and strong.
- DNatural rubber has a trans configuration at every double bond.
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Similar Questions
$C_6H_6O$ (phenol) $\xrightarrow[\text{3}H_2\text{ (High temp and pressure)}]{Ni} (A)$ $\xrightarrow{Cu} (B)$ $\xrightarrow{NH_2OH} (C)$ $\xrightarrow{H^{+}} (D)$ $\xrightarrow{HO^{-}} (E)$
Product $(E)$ is
Product $(E)$ is
Difficult
View SolutionMatch the polymers in List-$I$ with their monomers in List-$II$ and select the correct match:
List-$I$ List-$II$ $A$. $Nylon$ $6,6$ $i$. $Ethylene$ $glycol$ and $Terephthalic$ $acid$ $B$. $Terylene$ $ii$. $1,3-Butadiene$ and $Styrene$ $C$. $Buna-S$ $iii$. $Chloroprene$ $D$. $Neoprene$ $iv$. $Acrylonitrile$ $v$. $Adipic$ $acid$ and $Hexamethylenediamine$
The correct match is:
| List-$I$ | List-$II$ |
|---|---|
| $A$. $Nylon$ $6,6$ | $i$. $Ethylene$ $glycol$ and $Terephthalic$ $acid$ |
| $B$. $Terylene$ | $ii$. $1,3-Butadiene$ and $Styrene$ |
| $C$. $Buna-S$ | $iii$. $Chloroprene$ |
| $D$. $Neoprene$ | $iv$. $Acrylonitrile$ |
| $v$. $Adipic$ $acid$ and $Hexamethylenediamine$ |
The correct match is:
The molecular weight of cellulose varies between
Medium
View SolutionNylon threads are made from which polymer?
Easy
View SolutionIf $\bar{M}_w$ is the weight average molecular weight and $\bar{M}_n$ is the number average molecular weight of a polymer,the poly dispersity index $(PDI)$ of the polymer is given by
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