How to ask if a checkbox is selected, if it was created dynamically?

I need to go through a grid that I create in a dynamic way when adding an order. But when I delete an order the way I ask if this check is through a cycle of the number of children plus the tag I gave when creating it.

CheckBox cb = new CheckBox(view.getContext());
                            cb.setHeight(120);
                            cb.setBackgroundResource(R.drawable.back_button);
                            cb.setTag("cb" + i);
                            cb.setText(cb.getTag().toString());

To ask if this check I do the following and remove the view created by its LinearLayout tag

 for(int i = 0; i < linear.getchildcount; i++)
                {
                    CheckBox cb = linearLayout.findViewWithTag("cb"+i);
                    if(cb.isSelected())
                    {
                        // ELIMINO LA COLUMNA SELECCIONADA //
                        linearLayout.removeView(linearLayout.findViewWithTag("ly" + i));
                    }
                    else
                    {
                        Toast.makeText(getApplicationContext(),"No Esta Check.",Toast.LENGTH_SHORT).show();
                    }

If I generate 3 Checkbox

1 cb1
2 cb2
3 cb3

And I eliminate item 2

1 cb1
3 cb3

Going back to tour gives me an error because there is no 2. try to change the tag after deleting the remaining children but I get an error.

Thank you very much in advance.