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Question:

Which one of the following sets forms the biodegradable polymer?

C6H5−CH=CH2 and CH2=CH−CH=CH2

H2N−CH2−COOH and H2N−(CH2)5−COOH

CH2=CH−CN and CH2=CH−CH=CH2

HO−CH2−CH2−OH and COOH−C6H4−COOH

Solution:

The condensation polymerization of H2N−CH2−COOH and H2N−(CH2)5−COOH forms Nylon-2-Nylon-6 which is a biodegradable polymer. It can be degraded by microorganisms like bacteria, fungi, etc. which are present in the environment. It is non-toxic and non-polluting. In options B, C, and D, the condensation polymerization of monomers results in the formation of non-biodegradable polymers. Hence, option A is correct.