Which of the following molecules is least resonance stabilized ?
← JEE Main 2017 · 2 Apr · Shift 1
ChemistrySingle correct+4 / -1Question 54 of 90
JEE Main 2017 · 2 Apr · Shift 1, Chemistry question 54
Answer and worked solution
Official answer: B
4,4-Dimethylcyclohexa-2,5-dienone has an sp³ carbon in the ring, so its π system is not cyclic and it is only weakly conjugated. Pyridine, benzene and furan are aromatic.