
Interpretation:
To state that the stereoisomer of polypropylene will rotate the plane polarized light or not.
Concept introduction:
Isotactic, syndiotactic, and atactic are the stereochemical forms. The
Syndiotactic are the macromolecules in which the (-R) groups are arranged in an alternate manner along the long chain of the polymer. Gutta percha is also an example for Syndiotactic polymer.
In atactic form the substituents are placed in a random manner along the long chain.
The important point to note here is that the polymer obtained from the chain growth
If the mixtures of the stereoisomers obtained are racemic in nature then they will not rotate the plane polarized light.
The racemic mixture or racemate is defined as the one that has equal amounts of left and right handed enantiomers of the chiral carbon.

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Chapter 31 Solutions
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