VCE Chemistry Question Thread

[knightrider]

Just wondering where is everyone else upto in chemistry atm?

[Elizawei]

Just wondering where is everyone else upto in chemistry atm?

Just finished my Organic chem SAC! We've also just finished instruments and starting on DNA and stuff (which is so awesome because biochemistry is so good  )

[Swagadaktal]

Just finished my Organic chem SAC! We've also just finished instruments and starting on DNA and stuff (which is so awesome because biochemistry is so good  )

biochemistry is fascinating but unfortunately we don't really delve deep into it. It's extremely interesting to see the chemical side of some of the processes that occur in our body! But on a sac or exam we'll probably just have some question about bonds in dna

[vox nihili]

biochemistry is fascinating but unfortunately we don't really delve deep into it. It's extremely interesting to see the chemical side of some of the processes that occur in our body! But on a sac or exam we'll probably just have some question about bonds in dna

It's really quite different to chem too. I hope you get a chance to delve deeper in the years to come

[JellyBeanz]

biochemistry is fascinating but unfortunately we don't really delve deep into it. It's extremely interesting to see the chemical side of some of the processes that occur in our body! But on a sac or exam we'll probably just have some question about bonds in dna

Yeah agreed, for the SAC all we got was some questions about enzymes, how they are denatured and their structure and also DNA structure, bond types between complementary bases and that was about it. Not a hell of a lot you learn about biochemistry in VCE.

[Rumena]

Hey guys I wanted to ask if we are required to memorise and understand the production of ethanol from grain? We have this diagram in our heinmann textbook which summarises the production but I don't want to memorise it if it is not required, so if any of you know could you please tell me, thanks!

[Rumena]

Also I have my organic chem sac on Monday, so I wanted to ask if anyone has done it? And if so, is there a lot of questions about biofuels in it?

[Elizawei]

Also I have my organic chem sac on Monday, so I wanted to ask if anyone has done it? And if so, is there a lot of questions about biofuels in it?

Hey Rumena I just did my organic chem SAC on Friday, and it didn't have any biofuels in it, however the SACs are very different depending on school so I'm not entirely sure if your school will test it. (My best bet is that if your teacher went over it in class, then it's likely to be on the SAC).
However, I'm 99.95% sure that organic chem test will certainly involve:

• Organic pathways (e.g how do we make propyl propanoate from propane?
• Drawing/naming organic substances
• The different reactions of alkanes/alkenes (like combustion, addition, substitution (maybe even cracking)
• monomers/polymers (know your addition polymerisation and condensation polymerisation
• Maybe biomolecules (if you covered it in class)

Pretty much if you've covered it in class prior to this SAC, there's a chance of it being on the SAC. Maybe email your teacher if you're unsure.

Good luck for your sac!  

[Rumena]

Hey Rumena I just did my organic chem SAC on Friday, and it didn't have any biofuels in it, however the SACs are very different depending on school so I'm not entirely sure if your school will test it. (My best bet is that if your
teacher went over it in class, then it's likely to be on the SAC).
However, I'm 99.95% sure that organic chem test will certainly involve:

• Organic pathways (e.g how do we make propyl propanoate from propane?
• Drawing/naming organic substances
• The different reactions of alkanes/alkenes (like combustion, addition, substitution (maybe even cracking)
• monomers/polymers (know your addition polymerisation and condensation polymerisation
• Maybe biomolecules (if you covered it in class)

Pretty much if you've covered it in class prior to this SAC, there's a chance of it being on the SAC. Maybe email your teacher if you're unsure.

Good luck for your sac!  

Thanks! Yeah my teacher covered every single chapter under organic chem so I bet she'll put questions on them 😣 But oh well, thanks anyways

[Rumena]

Hey Rumena I just did my organic chem SAC on Friday, and it didn't have any biofuels in it, however the SACs are very different depending on school so I'm not entirely sure if your school will test it. (My best bet is that if your teacher went over it in class, then it's likely to be on the SAC).
However, I'm 99.95% sure that organic chem test will certainly involve:

• Organic pathways (e.g how do we make propyl propanoate from propane?
• Drawing/naming organic substances
• The different reactions of alkanes/alkenes (like combustion, addition, substitution (maybe even cracking)
• monomers/polymers (know your addition polymerisation and condensation polymerisation
• Maybe biomolecules (if you covered it in class)

Pretty much if you've covered it in class prior to this SAC, there's a chance of it being on the SAC. Maybe email your teacher if you're unsure.

Good luck for your sac!  

Sorry I wanted to ask if you did past vcaa exam questions on organic chem before your sac? And if so do u think I should do them?

[Elizawei]

Sorry I wanted to ask if you did past vcaa exam questions on organic chem before your sac? And if so do u think I should do them?

I did a few questions out of Cambridge checkpoints, which indeed had past VCE exam questions. I'll direct you to some good ones you should try:

VCAA UNIT 3:

2005 - Q3
2006 -Q7 (not part c as fractional distillation is not part of course anymore)
2008 - Q6
2009 - Q4
2009- Q8

These are more challenging than the textbook questions and I found them to be great practise for the organic SAC

[Elizawei]

b, c, and d please

[Rumena]

I did a few questions out of Cambridge checkpoints, which indeed had past VCE exam questions. I'll direct you to some good ones you should try:

VCAA UNIT 3:

2005 - Q3
2006 -Q7 (not part c as fractional distillation is not part of course anymore)
2008 - Q6
2009 - Q4
2009- Q8

These are more challenging than the textbook questions and I found them to be great practise for the organic SAC

I didn't even know that fractional distillation wasn't part of the study design lol, thanks so much!!

[HighTide]

(Image removed from quote.)

b, c, and d please

b) i. All have hydroxy functional groups
ii. Glycogen, maltose and starch have glycosidic linkages (only monomer is glucose)
c) 10 ether links means 11 monosaccharides connected together. 1 water molecule removed per link, hence 10 water molecules removed. With glucose monomer, 6C, 12H, 6O --> 11x = 66C, 132H, 66O ---> Since theres 10 water molecules, that accounts for a loss of 20 hydrogens, 10 oxygens.   Thus, CxHyOz where x= 66, y= 112, O= 56
d) Do the same for 15 water molecules.

[HopefulLawStudent]

Does anyone have any tips for remembering complementary colours? (apart from just rote-learning the hell out of the complementary colour table)