Multiple Choice (2 Viewers)

[mR sinister]

What where your multiple choice answers.
Mine,
1) C
2) C
3) D
4) C
5) D
6) A
7) B
8) B
9) A
10) B
11) D
12) A
13) B
14) A
15) C

There was about 2-3 tough ones hope i did alright did u guys get similare?

 

[shady145]

What where your multiple choice answers.
Mine,
1) C
2) C
3) D
4) C
5) D
6) C
7) C -- Could be A got confused
8) B
9) A
10) B
11) D
12) A
13) B
14) A
15) C

There was about 2-3 tough ones hope i did alright did u guys get similare?

omg i think u did terrible
from my answers u got 10 of them wrong

 

[fayad158]

^ lol same mann

 

[mR sinister]

lol? are u serious, im confident until question 6
pretty sure 6 is wrong.
and 9 14, 15 were a guess

hmm.. i was thinking probably 12/15

 

[shady145]

^ lol same mann

i feel bad for telling him that lol, he had a smiley face and all

 

[sam5]

What where your multiple choice answers.
Mine,
1) C
2) C
3) D
4) C
5) D
6) C
7) C -- Could be A got confused
8) B
9) A
10) B
11) D
12) A
13) B
14) A
15) C

There was about 2-3 tough ones hope i did alright did u guys get similare?

could someone please write the questions up or scan it on?

I couldnt take the paper cos we started and finished 5 mins early.

Greatly appreciated.

 

[fayad158]

i feel bad for telling him that lol, he had a smiley face and all

lol now your making me feel bad, we could be wrong..

 

[mR sinister]

Are you guys, joking..

Seriously ur freaking me out,

 

[Monsterman]

5 is wrong ..its A i believe..
6 is C
14 is B

 

[Cataclysm]

I got:

C
C
D
C
A (Wrong, I bet)
D
B
A
A
B
B
C (could be A?)
B
?
C

 

[mR sinister]

ok realized im wrong for 5

 

[study-freak]

Mine is:
1.C
2.C
3.D
4.C
5.A
6.D
7.B
8.A
9.C
10.B
11.B
12.A
13.B
14.B
15.A
LOL there are 2 threads for MC

 

[study-freak]

independent variable is what you control and keep same for all the cases..
it cant be A
since your changing the type of alkanol used.

therefore, its D since you always make the change in temp the same for all cases.

You mean controlled variable?

 

[Monsterman]

15
is
A

 

[shady145]

I got
1) C
2) C
3) D
4) C
5) A I forgot what independent variables were O_O
6) D
7) B
8) B
9) C Total guess. I've always sucked at oxidation states and stuff D:
10) B
11) D
12) A
13) B
14) C No idea what I did with the numbers but I got something that looked like C...
15) A

it is the one u set, the dependent is what u measure... OP put the dependent not independent. sorry OP wat i said is what i meant

 

[zsmekel]

Working for question 15 MC should look like this:

At 25 degrees concentration is 8mg/L which is 80mg or 0.08g in 10L

n = m/M
= 0.08/32
= 2.5x10^-3 moles

At standard pressure 100kPa

V = n x Vn
= 2.5x10-3 x 24.79
= 0.061975L or 62mL

Therefore the answer is D

 

[zsmekel]

I mean A (woops)

 

[kwokie]

mine are
1 C
2 C
3 D
4 C
5 A
6 D
7 B
8 A
9 C
10 B
11 D
12 A
13 B
14 A
15 A

 

[walk]

2009 HSC
1. C
2. C
3. D
4. C
5. A
6. D
7. B
8. A
9. C
10.B
11.D (don't like question as pH adjustment can also be done to assist with flocculation)
12.A
13.B
14. B
15. A

I didn't think that they were too tricky
As usual - stupid mutli-step calculations question worth 1 mark (Q14,15)

 

[sam5]

2009 HSC
1. C
2. C
3. D
4. C
5. A
6. D
7. B
8. A
9. C
10.B
11.D (don't like question as pH adjustment can also be done to assist with flocculation)
12.A
13.B
14. B
15. A

I didn't think that they were too tricky
As usual - stupid mutli-step calculations question worth 1 mark (Q14,15)

can anyone plz write up the mc (even if its a very half arsed job)?