1.

which of the following isnylon 66 ?

Answer»

`[OC(CH_2)_6CONH(CH_2)_4NH]_n`
`[OC(CH_2)_4CONH(CH_2)_6NH]_n`
`[OC(CH_2)_4CONH(CH_2)_4NH]_n`
`[OC(CH_2)_6CONH(CH_2)_6NH]_n`

ANSWER :B


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