Question

15. Thiophene shows electrophillic substitution reactions mainly at-
a) d-position
b) B-position
c) y-position
d) None of above​

Answer 1

Answer: y position

Explanation:

Thiophene compounds are more reactive compared to benzene. ... That's why the attack of electrophiles takes place at y-position in thiophene to attain stability

Answer 2

Option (B) Thiophene shows electrophilic substitution reactions mainly at B-position.

Explanation:

• Thiophene is a heterocyclic compound with the chemical formula $C4H4S$
• Thiophene, furan, and pyrrole, like benzene and naphthalene, show electrophilic substitution reactions.

• All these compounds are more reactive than Benzene.
• The electrophiles attack on the second position and not on the 3rd position in the heterocyclic compounds.
• They mainly attack the second position to make it stable.