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Natural rubber or raw rubber consists of...

Natural rubber or raw rubber consists of basic material latex which is a dispersion of isoprene. Natural rubber can treatment this isoprene polymers to form a high molecular weight polymer of isoprene. Natural rubber can be obtained from five hundred different species of plants.
In the isoprene polymer all the isoprenes have

A

Trans 1,4 condiguration

B

Cis 1,4 configuration

C

Both cis & trans 1,4 configuration

D

Cis 1,2 configuration

Text Solution

Verified by Experts

The correct Answer is:
B

Cis-1,4-configuration
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Knowledge Check

  • Natural rubber or raw rubber consists of basic material latex which is a dispersion of isoprene. Natural rubber can treatment this isoprene polymers to form a high molecular weight polymer of isoprene. Natural rubber can be obtained from five hundred different species of plants. The molecular weight of the raw rubber is about

    A
    1,00,000 - 1,50,000
    B
    5,000-10,000
    C
    2,00,000 - 5,00,000
    D
    50,000 - 1,00,000
  • Natural rubber or raw rubber consists of basic material latex which is a dispersion of isoprene. Natural rubber can treatment this isoprene polymers to form a high molecular weight polymer of isoprene. Natural rubber can be obtained from five hundred different species of plants. (i) Tensile strength of vulcanized rubber is almost ten times more than raw rubber. (ii) Elasticity of raw rubber is very high.

    A
    (i) is true (ii) is false
    B
    (i) is false (ii) is true
    C
    Both (i) & (ii) are true
    D
    both (i) & (ii) are false
  • The synthetic polymer which resembles natural rubber is

    A
    Neoprene
    B
    PMMA
    C
    Glyptal
    D
    Nylon
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    (A) : Natural rubber is a polymer of cis-isoprene (R) : Poly trans isoprene is called Gutta-percha

    (A) Natural rubber is cis polyisoprene. (R) Isoprene is 2-methyl-1,3-butadiene.