Comparison of Multiple-Choice Answers (2 Viewers)

[ringout13]

Well if that's the case... one more mark gone... off my already 20 marks gone.... ... OMG... i hope i get at least 7 for MC... ****

Dont worry mate it was a hard exam, ill be lucky to get 10/15
i just hate all these geeks who go on about how easy it was, IT WASNT EASY THO, sooo many bloody trick questions, wat a joke to do it to our year!

 

[alsha89]

My answers are:
1. C
2. A
3. A - i wasn't sure about this one.
4. C
5. D - actually, redoing i think it is probably B instead - another mark lost. ah well.
6. B
7. A
8. A - meant to put B but changed it for some stupid reason!!! argh.
9. C
10. C
11. A - i'm pretty sure this is right. i know i read it somewhere.
12. A
13. D
14. A - it should be A becuase you should keep the number of decimal places the same so there should only by 3 as all the data contain 3 also.
15. A

 

[Sparcod]

My answers are:
1. C
2. A
3. A - i wasn't sure about this one.
4. C
5. D - there has to be 6 isomers becuase there are 6 possible combinations???
6. B
7. A
8. A - meant to put B but changed it for some stupid reason!!! argh.
9. C
10. C
11. A - i'm pretty sure this is right. i know i read it somewhere.
12. A
13. D
14. A - it should be A becuase you should keep the number of decimal places the same so there should only by 3 as all the data contain 3 also.
15. A

I don't think 5 was D. How did you work out that question?

Consider this. If you have an isomer and get its mirror image. That's considered the same thing and has the same name. That's how some people got fooled.

14 was very controversial too.

 

[angmor]

5 was 4 isomers. im pretty sure of that

 

[alsha89]

i agree with the 4 isomer thing now. don't know what i was thinking during that exam. lol.

 

[therz_danger]

OI are u sure for Q10?????
isnt it b??
jesus! 2H3PO4 has 0.0202 number of moles, therefore H3PO4 has 0.0101 duh.
Thus H3PO4 + 3NaOH ratio of 1:3 thus multiply by 3 to number of moles(0.0101)
Overall n=cv 0.0303=(0.3)V thus V=0.0303/0.3 THEREFORE V=0.10 !!! DUH

 

[CheekyPunk]

OI are u sure for Q10?????
isnt it b??
jesus! 2H3PO4 has 0.0202 number of moles, therefore H3PO4 has 0.0101 duh.
Thus H3PO4 + 3NaOH ratio of 1:3 thus multiply by 3 to number of moles(0.0101)
Overall n=cv 0.0303=(0.3)V thus V=0.0303/0.3 THEREFORE V=0.10 !!! DUH

Nah, cause its two different reactions. The .02M carries over to the next equation. You produce .02M of phosphoric acid, and then you use those .02M of phosphoric acid for the next reaction.

Answer is C >< dang, i was gonna guess that, but decided to guess the weirder one. Took me a minute more to do it just then as well.

Stupid questions for MC though, at least 3 marks worth of working if it were in the other questions.


And of course it works out. They put in answers that you can get to if you make silly mistakes. Which is kinda stupid...

 

[Sir Loin]

WTH was with the multiple choice section? I skipped out of the exam, "YAY! ACE!" then 5 minutes later after discussing multi choice...wtf? Core + Forensics was easy enough, but multiple choice...I hope the person who made up those questions get bombed...:mad1:

 

[yorky]

1 c
2 a
3 d
4 a
5 d
6 d
7 a
8 b
9 c
10 c
11 7.3
12 a
13 d
14 c
15 E it is obviuosly none of the above, watta shit stick question BOS are douchebags

pretty sure i got 15, that is if they pay no.15, they shuld, pretty sure i got 100% for the rest of the test too, piss easy if u ask me, but i am a mad bastard, so yeah, good luck to evry1

 

[followme]

My ans to MC:

1) C
2) A
3) B
4) C
5) B
6) B
7) A
8) B
9) C
10) C
11) D (not sure)
12) A
13) D
14) D (not sure)
15) A

looks like => 13/15

 

[XcarvengerX]

OK, here's mine with a little analysis:
1. C (Catalytic Cracking... duh... no alliteration intended)
2. A (Obvious)
3. B (Other choices have unstable one; stable H is 1,1)
4. C (Calculate it)
5. B (only 4 isomers guys: 1,1; 1,2; 1,3; 2,2 - the others are mirror of those)
6. B (Condensation polymerisation so don't forget to minus the atomic weight 4 water molecules - the problem I can see here is only if what they mean that the 5 glucose form ring shapes polymer which in that case would be A; but I think B is the correct one because it is straight)
7. A (Sweet, eh?)
8. B (HCl is strong and will always be strong, it is just more dilute therefore lower concentration then acetic acid)
9. C (Can be B, I thought I saw this question before but I forgot)
10. B (That is only one mole of phosporic acid on the second equation guys)
11. C (A is Davy, B and D aren't those for Bronsted-Lowry)
12. A (Because the others are incorrect)
13. D (What an easy one)
14. D (Odd one out. 3 significant figures)
15. A (Pressure increases, yield increases; temperature increases, yield decreases)

 

[bboyelement]

OK, here's mine with a little analysis:
1. C (Catalytic Cracking... duh... no alliteration intended)
2. A (Obvious)
3. B (Other choices have unstable one; stable H is 1,1)
4. C (Calculate it)
5. B (only 4 isomers guys: 1,1; 1,2; 1,3; 2,2 - the others are mirror of those)
6. B (Condensation polymerisation so don't forget to minus the atomic weight 4 water molecules - the problem I can see here is only if what they mean that the 5 glucose form ring shapes polymer which in that case would be A; but I think B is the correct one because it is straight)
7. A (Sweet, eh?)
8. B (HCl is strong and will always be strong, it is just more dilute therefore lower concentration then acetic acid)
9. C (Can be B, I thought I saw this question before but I forgot)
10. B (That is only one mole of phosporic acid on the second equation guys)
11. C (A is Davy, B and D aren't those for Bronsted-Lowry)
12. A (Because the others are incorrect)
13. D (What an easy one)
14. D (Odd one out. 3 significant figures)
15. A (Pressure increases, yield increases; temperature increases, yield decreases)

i disagree with 10 and 11...im 100% sure 11 is d
question 10 is two seperate equations i remembered doing this in a past paper.
have a look at question 15 in 2005 hsc... same type of question and you will find yourself incorrect.
its c

 

[pink668]

i remember reading one of their marking guidelines, and they were talking about teh reliability of aas results. you had make an assessment and so forth. htye actually gave a mark for mentioning that one of the estimates for an outlier. so i think you can take out anaylsis 3.
furthermore, they did not mention to round it off to sig figures but i do remember them talking about sig figs...
this test does have alot of trick questions when looking back at it... its just i never thought about them in the test and thought that they were all simple... oh wells

 

[earthnfire]

1.C (Petroleum/Crude Oil is the main way.. via cat-cracking)
2.A (Concentrated sulfuric acid used in dehydration, dilute in hydration)
3.B (Seemed like the only one with neutron-proton ratio reasonable)
4.C
5.B
6.B (Gotta - 4.H20 since its condensation polymerisation)
7.A
8.B
9.C
10.C
11.C (most likely wrong.. probably D)
12.A
13.D
14.D (Significant figures.. markers always bitch about how important it is )
15.A

wow..your soo right about 14...that means i amy have lost a mark

 

[Tbomb2k]

11. A - i'm pretty sure this is right. i know i read it somewhere.

Wrong.. that was Lavoisier dude.

 

[Tbomb2k]

1 c
2 a
3 d
4 a
5 d
6 d
7 a
8 b
9 c
10 c
11 7.3
12 a
13 d
14 c
15 E it is obviuosly none of the above, watta shit stick question BOS are douchebags

pretty sure i got 15, that is if they pay no.15, they shuld, pretty sure i got 100% for the rest of the test too, piss easy if u ask me, but i am a mad bastard, so yeah, good luck to evry1

Dude r u in the right forum?? u got a few wrong there... there is no way ur getting 15/15 with those answers.. sorry but the tribe has spoken (i.e. the majority of the answers posted).

 

[majan]

hey these r my answers....



C
A
B
C
B
A (its b though)
A
B
B (its c though)
C
D
A
D
D
A

 

[sja]

Hey guys there seems to be a bit of confusion with the Historical Scientist question and Arrhenius' work on Acids/Bases.

I just looked at SuccessONE answers and they said that;

Arrhenius dealt with H+ ions, and although he said H+ was on the only ion produced when an acid is in solution, it was not completely corrected (Bronsted-Lowry fixed this).
BUT this DID effectively help us explain how Strong and Weak acids back (complete dissociation of ions etc.)

Love you people!

 

[Lizcat]

OK, here's mine with a little analysis:
1. C (Catalytic Cracking... duh... no alliteration intended)
2. A (Obvious)
3. B (Other choices have unstable one; stable H is 1,1)
4. C (Calculate it)
5. B (only 4 isomers guys: 1,1; 1,2; 1,3; 2,2 - the others are mirror of those)
6. B (Condensation polymerisation so don't forget to minus the atomic weight 4 water molecules - the problem I can see here is only if what they mean that the 5 glucose form ring shapes polymer which in that case would be A; but I think B is the correct one because it is straight)
7. A (Sweet, eh?)
8. B (HCl is strong and will always be strong, it is just more dilute therefore lower concentration then acetic acid)
9. C (Can be B, I thought I saw this question before but I forgot)
10. B (That is only one mole of phosporic acid on the second equation guys)
11. C (A is Davy, B and D aren't those for Bronsted-Lowry)
12. A (Because the others are incorrect)
13. D (What an easy one)
14. D (Odd one out. 3 significant figures)
15. A (Pressure increases, yield increases; temperature increases, yield decreases)

I GOT THE EXACT SAME AS YOU..!!! are you good at chem.. coz if u are then I GOT 15/15 haha.. relief.. coz i didnt have time to check over it.. ran outta time which is very unusual!!

 

[lauranoble]

can someone explain why question 9 isn't B - dammit its the exact sentance from my notes lol