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State PCS PYQPrelims 2025

BPSC – Combined Competitive Examination · Question 138

Full form of the biodegradable polymer PHBV:

  1. Polyhydroxy butyl vanillin
  2. Poly hydroxy butane veratric acid
  3. Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)
  4. Poly hydroxybutyric acid veratric acid
Show answer & explanation

Answer: (C) Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)

Explanation

PHBV, poly(3-hydroxybutyrate-co-3-hydroxyvalerate), is a biodegradable aliphatic polyester.

  • (A) Incorrect

    Wrong: incorrect expansion.

  • (B) Incorrect

    Wrong: incorrect expansion.

  • (C) Correct

    Correct: PHBV is a copolymer of 3-hydroxybutyric and 3-hydroxyvaleric acids.

  • (D) Incorrect

    Wrong: incorrect expansion.