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Chemistry Question on classification of polymers

[NH(CH2)NHCO(CH2)4CO]n[NH(CH_2)NHCO(CH_2)_4CO]_{n} is a:-

A

copolymer

B

addition polymer

C

thermo-setting polymer

D

homopolymer

Answer

copolymer

Explanation

Solution

−[NH(CH)2NHCO(CH2)4CO]n-\left[ NH ( CH )_{2} NHCO \left( CH _{2}\right)_{4} CO \right]_{ n } - is a copolymer because polymers whose repeating structural units are derived from two or more types of monomer units are called copolymer.
nH2N(CH2)NH2+nHOOC(CH2)4COOH−>[Polymerisation][nH2O]nH_2N(CH_2)NH_2 + nHOOC(CH_2)_4COOH {->[\text{Polymerisation}][nH_2O]}
−[NH(CH2)NHCO(CH2)4CO]n−-[NH(CH_2)NHCO(CH_2)_4CO]_n-