Question

13. If thiophene below reacts like benzene, at what position will alkylation occur? (a) 1 (b) 2 (c) 3 (d) 4 (e) 5

i know the osition has to be para or ortho but why is it 2 and not 5?
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Answer #1

2 and 5 position are same as the whole structure is resonance stabilized and in 1HNMR hydrogen at 2 and 5 position shows that they are same i.e. chemically equivalent

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