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Explain the preparation of Buna-N....

Explain the preparation of Buna-N.

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Buna-N is prepared by co-polymerisation of 1,3-butadiene and acrylonitrile in the presence of peroxide or sodium catalyst.
`underset("1,3-Butadiene")(nCH_(2)=)CH-CH=CH_(2)+underset("Acrylonitrile")(nCH_(2))=overset(CN)overset(|)(CH) underset("Na Catalyst")overset("Co polymerisation")to "["-CH_(2)-CH=underset("Buna -N")(CH_(2)-CH_(2))-CH_(2)-overset(CN)overset(|)(CH)-"]"_(n)`
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