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MHT CET Medical202623 April 2026Morning ShiftChemistryPolymersActual

What are the monomers used for preparation of PHBV?

Options

  1. ACellulose xanthate and NaOH.
  2. B1,3-Butadine and styrene
  3. C-Hydroxy butyric acid and -Hydroxy valeric acid
  4. DEthylene glycol and phthalic acid

Correct answer

C. -Hydroxy butyric acid and -Hydroxy valeric acid

Step-by-step solution

PHBV stands for Poly -hydroxybutyrate-co- -hydroxyvalerate. It is a biodegradable copolymer obtained by the copolymerisation of 3-hydroxybutanoic acid ( -hydroxybutyric acid) and 3-hydroxypentanoic acid ( -hydroxyvaleric acid). Answer: -Hydroxy butyric acid and -Hydroxy valeric acid

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