Practice Exam Marks?

[Lols123]

What kind of marks should we be getting at this stage? :S
Cause i only keep getting between 80-90 :/
cant seem to break the 90% D:

Applies to Other Mid Years as well.

[RobM8]

This is an extremely subjective question that depends on you and what you have done so far.
Prior to starting exams I had finished all the questions in our textbook, worksheets school gave us and checkpoints.
I had already seen 90% of questions in the exams I was doing so I was getting around 95% in the initial ones.

If you had not done checkpoints and not a lot of working during the year leading up to now from your textbook and other sources, I would be pretty satisfied with around 85% and that will surely increase as you get closer to the exam.

[Water]

You guys aren't marking yourselves hard enough if your getting that much.

[jackson1234]

Yeah what water said.

[Vincezor]

You guys aren't marking yourselves hard enough if your getting that much.

For theory, I try to mark myself as hard as possible. Even if the answer was similar, I would probably mark it wrong and write the suggested answer in a red pen. So ultimately, I mark it as 'wrong'. As for calculations, I make sure the right sig figs EVERY step. I'll take one mark off the whole exam if sig figs are off. This occurred almost every time when I started, however now it doesn't seem to be much of a problem. I'll also mark my organic structures incorrect if they carbon chain are not zig-zag, with the exception of the large amino acids

Yes, I've been hitting between 85-95 even after all of this.

[Asx4Life]

Has anyone done 2011 Lisachem? I got raped so hard by it.

[luken93]

You guys aren't marking yourselves hard enough if your getting that much.

For theory, I try to mark myself as hard as possible. Even if the answer was similar, I would probably mark it wrong and write the suggested answer in a red pen. So ultimately, I mark it as 'wrong'. As for calculations, I make sure the right sig figs EVERY step. I'll take one mark off the whole exam if sig figs are off. This occurred almost every time when I started, however now it doesn't seem to be much of a problem. I'll also mark my organic structures incorrect if they carbon chain are not zig-zag, with the exception of the large amino acids

Yes, I've been hitting between 85-95 even after all of this.

To save you some hassle, carbon chains are allowed to be at right angles rather than zig-zag.

Has anyone done 2011 Lisachem? I got raped so hard by it.

Yeah, hardest Lisachem in the study design IMO

[cohen]

From TSFX's email i recently got

Code: [Select]

-You do not need to provide states or show lone pairs or valence electrons in structural formulae and equations.

-Although the current Chief Assessor accepts structural formulae drawn with right angles, we do encourage students to
 draw molecules showing the appropriate 3-D shape i.e. tetrahedral or triangular etc.

- If asked to show “all bonds”, do not forget to expand CH3 and OH groups etc.

So either way (zig-zagging or right angles), you'll still get the marks for it.

[Water]

Damn, I thought Lisachem 2011 was easier than its predecessors  LoL >_<! Screwed up the fractioning tower though cause I didn't know how it functioned till now.

[acinod]

I scored the lowest in the following, not sure if it's because they were good or bad exams though:
2011 LisaChem   63%
2009 VCAA   64%
2010 LisaChem   75%
2009 TSFX           75%
2010 NEAP     77%
2011 CSE           80%
2010 VCAA   80%
2010 KBT           81%
2010 TSFX           83%
2011 Insight   83%
2010 Insight   85%

[Christiano]

Biology and Chemistry both on 75%-79% lately. Although for Biology, that usually translates to an A+. Got to work on chemistry 

[golden]

With question 4a (Circle only the atoms on the components that will form bonds with the other components to form a single nucleotide) from Insight 2011, shouldn't it be the CH2 and CH from the deoxyribose that is circled instead of the OH groups (as in the solutions) as it is effectively the CH2 and CH which bond with the other components to form a nucleotide?