Hii,



If u see from the JEE point of view, there is no need of remember  the series of 1st group of inductive effect because it is very vast.

Instead of remembering the +I series as it is easy and it helps in remembering  the +M group as well.

As a shortcut,when the most electronegative present in the group or are in the combination with a carbon atom then the group is generally a -I group.

Remember, presence of -I group increases the acidic strength of the acid as it stabilises the conjugate and a +I group decrease the acidity of the acid by destabilizing thr conjugate base.

Hope this trick will help you.

All the best!