Why are cross-links introduced in rubber for practical applications?
- ATo decrease the elasticity of rubber.
- BTo increase the elasticity and strength of rubber.
- CTo make rubber soluble in organic solvents.
- DTo make rubber brittle.
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Similar Questions
Arrange the following polymers in the decreasing order of their intermolecular forces:
$A$. Bakelite
$B$. Teflon
$C$. Buna-$S$
$D$. Nylon-$6,6$
$A$. Bakelite
$B$. Teflon
$C$. Buna-$S$
$D$. Nylon-$6,6$
Medium
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
Which of the following polymers is also known as $Dacron$?
The correct match between Item-$I$ and Item-$II$ :
Item-$I$ Item-$II$ $a$. Natural rubber $I$. $1,3-$butadiene $+$ styrene $b$. Neoprene $II$. $1,3-$butadiene $+$ acrylonitrile $c$. Buna$-N$ $III$. Chloroprene $d$. Buna$-S$ $IV$. Isoprene
| Item-$I$ | Item-$II$ |
|---|---|
| $a$. Natural rubber | $I$. $1,3-$butadiene $+$ styrene |
| $b$. Neoprene | $II$. $1,3-$butadiene $+$ acrylonitrile |
| $c$. Buna$-N$ | $III$. Chloroprene |
| $d$. Buna$-S$ | $IV$. Isoprene |
Which of the following is the first stage in the preparation of viscose rayon?
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