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The two monomers for the synthesis of Nylon 6, 6 are

1. HOOC(CH 2 ) 6 COOH, H 2 N(CH 2 ) 4 NH 2
2. HOOC(CH 2 ) 4 COOH, H 2 N(CH 2 ) 6 NH 2
3. HOOC(CH 2 ) 4 COOH, H 2 N(CH 2 ) 4 NH 2
4. HOOC(CH 2 ) 6 COOH, H 2 N(CH 2 ) 6 NH 2

Correct answer: HOOC(CH 2 ) 4 COOH, H 2 N(CH 2 ) 6 NH 2

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