MCQ
Which of the following is incorrect regarding natural rubber?
  • A
    It is cis$-$polyisoprene
  • B
    It is amorphous in nature
  • It has syndiotactic stereochemistry
  • D
    Molecules of rubber have coiled conformation

Answer

Correct option: C.
It has syndiotactic stereochemistry
Rubber has isotactic stereochemistry, not syndiotactic.
Tacticity refers to the orderliness of succession of configurational repeating units in the main chain of a macromolecule.
This is an application of stereochemistry as it concerns the spatial arrangement of substituent groups.

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