No one has ever failed in honors in all the subjects. Most students tend to fail in chemistry, but this also varies a lot. Let me discuss some of the possible reasons, which may answer your question.
Failed to Qualify for Honours:
Qualified for Honours but failed in any/both general subjects:
Failing in both Honours and General subjects:
Finally, it is really important to know that a student has to complete his or her graduation within 5 years, failing which your registration will be canceled.