CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317164
Which of the following statements about tropone is true?
1 It is hetcrocyclic having molecular formula \(\mathrm{C}_{5} \mathrm{H}_{10} \mathrm{O}\).
2 It is benzenoid having molecular formula \(\mathrm{C}_{10} \mathrm{H}_{8} \mathrm{O}\).
3 It is nonbenzenoid having molecular formula \(\mathrm{C}_{7} \mathrm{H}_{6} \mathrm{O}\).
4 It is heterocyclic having molecular formula \(\mathrm{C}_{7} \mathrm{H}_{6} \mathrm{O}\).
Explanation:

Tropone \(\left(\mathrm{C}_{7} \mathrm{H}_{6} \mathrm{O}\right)\)
(Non - benzenoid compound)