Chemistry · PYQ NEET UG 2023
हिन्दीConsider the following compounds/species:\ni. Naphthalene\nii. Cyclopentadienyl anion\niii. Cyclobutadiene\niv. Cyclopropenyl anion\nv. Cyclopropenyl cation\nvi. Cyclooctatetraene\nvii. Anthracene\nThe number of compounds/species which obey Huckel's rule is ____.
Correct answer · Option 1
4
Explanation
Huckel's rule requires (4n + 2) pi electrons and planarity. Naphthalene (10), Cyclopentadienyl anion (6), Cyclopropenyl cation (2), Anthracene (14) obey Huckel's rule (Total 4 species).