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Aldehydes, Ketones, and Carboxylic Acids — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryAldehydes, Ketones, and Carboxylic Acids1 Mark
MCQ
Which of the following does not uses formaldehyde in its preparation?
  • A
    Melamine polymer
  • B
    Bakelite
  • ✓
    $\text{PHBV}$
  • D
    Preservation of biological specimens.
✓

Answer

Correct option: C.
$\text{PHBV}$
Formaldehyde is not used in the preparation of $\text{PHBV. PHBV}$ 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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