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Q. Match the column $I$ with column $II$ and mark the appropriate choice.

Column $I$
(Polymers) Column $II$
(Monomers)

(A) Buna-$N$ (i) Phthalic acid and ethylene glycol

(B) Nylon-$6,6$ (ii) Terephthalic acid and ethylene glycol

(C) Dacron (iii) Hexamethylene diamine and adipic acid

(D) Glyptal plastic (iv) Acrylonitrile and butadiene

Polymers

A

$\left(A\right) \rightarrow\left(ii\right), \left(B\right) \rightarrow \left(iii\right), \left(C\right)\rightarrow \left(iv\right), \left(D\right) \rightarrow \left(i\right) $

B

$\left(A\right) \rightarrow\left(i\right), \left(B\right) \rightarrow \left(ii\right), \left(C\right)\rightarrow \left(iv\right), \left(D\right) \rightarrow \left(iii\right) $

C

$\left(A\right) \rightarrow\left(iii\right), \left(B\right) \rightarrow \left(iv\right), \left(C\right)\rightarrow \left(i\right), \left(D\right) \rightarrow \left(ii\right) $

D

$\left(A\right) \rightarrow\left(iv\right), \left(B\right) \rightarrow \left(iii\right), \left(C\right)\rightarrow \left(ii\right), \left(D\right) \rightarrow \left(i\right) $

Solution:

Buna-N is a polymer of acrylonitrile $\left( CH _2=\right.$ $CH ( CN )$ )and butadiene $\left( CH _2= CH - CH = CH _2\right)$ Nylon-66 is a polymer of hexamethylenediamine $\left( NH _2-\left( CH _2\right)_6- NH _2\right)$ and adipic acid (HOOC$\left.\left( CH _2\right)_4- COOH \right)$.
Dacron (terylene) is a polymer of terephthalic acid.

Glycol $\left( HOCH _2- CH _2 OH \right)$
Glyptal plastic is a polymer of phthalic acid