Monomers used to prepare PHBV

1. A.
   $HOOC-(CH_2)_4-COOH$ and $H_2N-(CH_2)_6-NH_2$
2. B.
   $HO-(CH_2)_2-OH$ and $HOOC-C_6H_4-COOH$
3. C.
   3-Hydroxybutanoic acid $CH_3-CH(OH)-CH_2-COOH$ and 3-Hydroxypentanoic acid $CH_3-CH_2-CH(OH)-CH_2-COOH$
4. D.
   $C_6H_5OH$ and $HCHO$

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1. A.
   $\beta$ - hydroxy Butyric acid and $\beta$ - hydroxy Valeric acid
2. B.
   Glycine and $\epsilon$ amino caproic acid
3. C.
   $\alpha$ - hydroxy Butyric acid and $\beta$ - hydroxy Valeric acid
4. D.
   $\beta$ - hydroxy Butyric acid and caproic acid

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1. A.
   $3$-hydroxybutanoicacid and $3$-hydroxypentanoicacid
2. B.
   $2$-ethyl-$3$-hydroxybutanoicacid and $3$-hydroxybutanoicacid
3. C.
   $3$-hydroxybutanoicacid and $4$-hydroxy-$2$-methylpentanoicacid
4. D.
   $3$-hydroxy-$2$-methylbutanoicacid and $4$-hydroxy-$3$-methylpentanoicacid.

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