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Question: Which of the following is not correctly matched....

Which of the following is not correctly matched.

A

Neoprene

[−CH2−C∣Cl=CH−CH2−]n\left\lbrack - CH_{2} - \underset{\underset{Cl}{|}}{C} = CH - C{H_{2}}^{-} \right\rbrack_{n}

B

Nylon-6,6

[−NH−(CH2)6−NH−CO−(CH2)4−C∣∣O−O−]n\left\lbrack - NH - (CH_{2})_{6} - NH - CO - (CH_{2})_{4} - \overset{\overset{O}{||}}{C} - O - \right\rbrack_{n}

C

Terylen

D

Teflon :

Answer

Terylen

Explanation

Solution

Terylene contains ester linkage i.e.,

−COH2−CH2−O−CO−- COH_{2} - CH_{2} - O - CO -and not ketone linkage.