Which of the following does not uses formaldehyde in its preparation?

Melamine polymer

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Bakelite

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PHBV

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preservation of biological specimens

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Solution

The correct option is D PHBV
Formaldehyde is not used in the preparation of PHBV. PHBV is a thermoplastic polymer. The monomers, 3-hydroxybutanoic acid and 3-hydroxypentanoic acid, are joined by ester bonds; the back bone of the polymer is made up of carbon and oxygen atoms.

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