
In the above reaction, left hand side and right hand side rings are named as and respectively. They undergo ring expansion. The correct statement for this process is:

In the above reaction, left hand side and right hand side rings are named as and respectively. They undergo ring expansion. The correct statement for this process is:
Ring expansion can go upto seven membered rings
Finally both rings will become six membered each.
Finally both rings will become five membered each.
Only A will become membered.
The reaction proceeds through a carbocation intermediate. The carbocation formed undergo rearrangement by ring expansion. Four membered ring undergo ring expansion to five membered ring and five membered ring undergo ring expansion to six membered ring and finally it converts to alkene by losing proton.

Asked in: JEE Main 2023 (13 Apr Shift 1)
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