BPSC PT 71

Q. Full form of PHBV biodegradable polymer :

a) Poly (3 – Hydroxy butyrate-co-3 hydroxy valerate)
b) Poly hydroxy butane veratric acid
c) Polyhydroxy butyl vaniline
d) Poly hydroxy butyric acid veratric acid
Correct Answer : a) Poly (3 – Hydroxy butyrate-co-3 hydroxy valerate)

Question from BPSC PT 71, 2025

Correct Answer: a) Poly (3-hydroxybutyrate-co-3-hydroxyvalerate)

Explanation:
– PHBV is a biodegradable copolymer in the polyhydroxyalkanoate (PHA) family made by bacteria. Its full form is poly(3-hydroxybutyrate-co-3-hydroxyvalerate).
– The “co-” indicates it is a copolymer of two monomers: 3-hydroxybutyrate (HB) and 3-hydroxyvalerate (HV).
– The other options mention compounds like “veratric acid” or “vaniline,” which are unrelated aromatic compounds and not components of PHBV.

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