Select the correct classification in the following reaction from options I to IV gives below:
(I) Conrotatoryelectrocyclic reaction
(II) Disrotatoryelectrocyclic reaction
(III) Valence isomerization
(IV) [π4S + π2a] Cycloaddition reaction
1
I and III
2
II and IV
3
II and III
4
I and IV
5
Question Not Attempted