During the vulcanization of rubber,natural rubber is heated with sulphur and some other additive to:
- AIncrease cross-linking
- BDecrease cross-linking
- CInduce hydrogen bonding
- DSulphur is used as a monomer
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If a polythene sample contains two monodisperse fractions in the ratio $2:3$ with degree of polymerization $100$ and $200$,respectively,then its weight average molecular weight will be
DifficultJEE MAIN 2013
View SolutionWhich of the following sets are correct regarding polymers?
$A$. Copolymer : $\text{Buna-}S$
$B$. Condensation polymer : $\text{Nylon-}6,6$
$C$. Fibre : $\text{Nylon-}6,6$
$D$. Thermosetting polymer : $\text{Terylene}$
$E$. Homopolymer : $\text{Buna-}N$
Choose the correct answer from the options given below.
$A$. Copolymer : $\text{Buna-}S$
$B$. Condensation polymer : $\text{Nylon-}6,6$
$C$. Fibre : $\text{Nylon-}6,6$
$D$. Thermosetting polymer : $\text{Terylene}$
$E$. Homopolymer : $\text{Buna-}N$
Choose the correct answer from the options given below.
Ebonite is a .......
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View SolutionWhich of the following statements is correct regarding the drawbacks of raw rubber?
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View SolutionWhich of the following fibres are made of polyamides?
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