[Oterizologic]

I had a query regarding the Name of the III structure in this picture and what is its inductive effect
https://ibb.co/M6kzr18

[Borek]

Please read the forum rules, you have to show you efforts at answering the question to receive help.

[Oterizologic]

Please read the forum rules, you have to show you efforts at answering the question to receive help.

I am sorry but i read and i didn't get what i had to do . english is not strong

[Borek]

Sorry, typo, should be "your efforts" - you need to show what methods/rules you know that should be applied, what you already did, and why you got blocked.

In short: before we can help we need to see you work.

[Vidya]

First III is a bicyclic ring carbocation .Check rules how to name bicyclic rings.
Inductive effect is electron withdrawing or electron donating effect through sigma bond. Here ring has a positive charge so it means that carbon is electron hungry.Now decide inductive effect.