PolymerHard

Question

Poly vinyl alcohol can be prepared by

Options

A.polymerization of vinyl alcohol
B.alkaline hydrolysis of polyvinyl acetate
C.polymerization of acetylene
D.reaction of acetylene with H2SO4 in presence of HgSO4

Solution

Vinyl alcohol, CH2 = CHOH, monomer of polyvinyl alcohol exists mainly as CH3CHO ;
Hence polyvinyl alcohol is best prepared by the alkaline hydrolysis of polyvinyl acetate which in turn is prepared by the polymerization of vinyl acetate

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