This is a tutorial on fallacies of faulty assumption. These two fallacies—loaded question and question-begging language—involve introducing into a discussion a point not proven, but just assumed on no evidence. In loaded question, this involves asking a question with a false or dubious presupposition. You refute the fallacy by simply pointing to a doubtful presupposition, or to the phrases which serve to assert the claim without evidence.
Note that there are borderline cases, especially when it is unclear whether the interrogative sentence given is used to ask a genuine question or to make a statement (a ‘rhetorical question’). For example, the passage:

Why do I say Sue is immoral? Because of all the evil that the despicable witch commits!

can be viewed as truly asking why Sue is immoral, which presupposes that she is , so asks a loaded question. On the other hand, the question may be viewed as rhetorical, in which case the passage amounts to saying that Sue is immoral because of all the evil she—an evil person—does. This offers no proof that she is in fact evil; it only offers question-begging language.