^ This is true. I'm not happy with my average and I'm going to do a lot to try to improve it
.
What sort of average would be needed for Honours in Chem, anyone?
Bachelor of Science (Honours)
1. The Selection Committee will evaluate the applicant’s ability to pursue successfully the course using the following criteria:
• a three-year undergraduate degree, of which at least the equivalent of two full years comprises science or technology areas of study,
• at least 50 points of study (one half of a full year) completed at third year level in science or technology areas of study,
• a Standard Grade Point Average (SGPA1
) of at least 65%.
2. The Selection Committee may conduct interviews and tests and may call for referee reports or employer references to elucidate any of the
matters referred to above.
To take Honours in Chemistry, you will need a major in Chem as well

Taken from here:
http://www2.chemistry.unimelb.edu.au/courses/postgrad/2011/BScHonours-CourseStructure.pdf