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The polymer obtained from the following reaction is : HOOC NH 2 (i) NaNO 2 /H 3 O + (ii) polymerisation

1. C – (CH 2 ) 4 – N O H n
2. HNC – (CH 2 ) 4 – C – N O H n O
3. OC – (CH 2 ) 4 O O n
4. O – (CH 2 ) 4 – C O n

Correct answer: O – (CH 2 ) 4 – C O n

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