Multiple Choice (1 Viewer)

[Menomaths]

isn't 8 = c?
i got 10 = b
am i wrong =/?

8 says '2-hydroxy...'

10 has to be C

 

[AnimeX]

8 says '2-hydroxy...'

10 has to be C

oh my bad, 7 is c, i read 8 being 7* my bad...

as for 10 I got that wrong... read it as exo
hopefully all the answers are right cause I got the same

*edit

 

[Menomaths]

oh my bad, 7 is c, i read 8 being c my bad...

as for 10 I got that wrong... read it as exo
hopefully all the answers are right cause I got the same

7 is C

 

[AnimeX]

I think this was a very tricky question. Polyethylene can be made from plant material as well!
I picked a because you can't actually make cups from cellulose. But i might just be over thinking this.
I'd still stick to a as an answer tho.

http://www.biopack.be/WebShop/En/?h...le_Drinking_Cups_for_Hot_and_Cold_Drinks.aspx

"Our biodegradable cardboard cups are made of pure cellulose. "

it's possible then, just clearing stuff up, don't over think it haha

 

[darkness70]

1. B
2. A
3. D
4. C
5. A
6. A
7. C
8. A
9. A
10. C
11. B
12. B
13. D
14. B (nearly got fooled for this one)
15. C
16. B
17. B
18. D
19. A
20. D

 

[hayabusaboston]

1.b
2.c
3.d
4.c
5.a
6.a
7.c
8.a
9.a
10.c
11.b
12.b
13.a
14.b
15.c
16.b
17.b
18.d
19.a
20.d

I think u got 19/20 lol, not sure about paper cup one.

 

[RealiseNothing]

1. B
2. A
3. D
4. C
5. A
6. A
7. C
8. A
9. A
10. C
11. B
12. B
13. D
14. B (nearly got fooled for this one)
15. C
16. B
17. B
18. D
19. A
20. D

2 is C I think?, but rest look fine (except 13, who da fuk knows anymore)

 

[Menomaths]

2 is C I think?, but rest look fine (except 13, who da fuk knows anymore)

2 is C

 

[bangladesh]

I think u got 19/20 lol, not sure about paper cup one.

It's alright, still happy with 19.

 

[mahmoudali]

how the hell do you guys remember the questions and options ... like seriously Illuminati

 

[superSAIyan2]

^ my school was allowed to take options and mcq booklets home. i think most other ppl did too

 

[Menomaths]

how the hell do you guys remember the questions and options ... like seriously Illuminati

Someone uploaded the paper

 

[darkness70]

2 is C I think?, but rest look fine (except 13, who da fuk knows anymore)

shit are you serious !! I thought AAS could only measure metal ions.. was full stumped on that, with A or C..

 

[RealiseNothing]

^ my school was allowed to take options and mcq booklets home. i think most other ppl did too

Yep this, you are allowed to take them home.

 

[Queenroot]

shit are you serious !! I thought AAS could only measure metal ions.. was full stumped on that, with A or C..

ugh me too, fml.

 

[panda15]

1. B
2. A
3. D
4. C
5. A
6. A
7. C
8. A
9. A
10. C
11. B
12. B
13. D
14. B (nearly got fooled for this one)
15. C
16. B
17. B
18. D
19. A
20. D

Not too sure about this, but isn't 17. a) Because they have the same molarity, but hcl is stronger than than acetic?

 

[Menomaths]

Not too sure about this, but isn't 17. a) Because they have the same molarity, but hcl is stronger than than acetic?

Do it manually, you'll get B.

 

[darkness70]

Not too sure about this, but isn't 17. a) Because they have the same molarity, but hcl is stronger than than acetic?

Nah it's not, it's like a titration. As long as you have the same number of moles of acetic and HCl (cos theyre both monoprotic), the same volume of NaOH is required. (like how the same volume of NaOH is required to reach equivalence point of HCl and Acetic, both monoprotic)

 

[psychotropic]

13 has to be D. If we accept the premise that the writing on the cup means nothing and is simply a trick, then the cup could be made from either PE or polystyrene (polystyrene cups are very popular). It would hence seem that this would mean A and B are correct, which cannot be the case. However, if we think logically and use the writing on the cup, it can be seen that ONLY cellulose is a renewable creation made from plants. Hence, D is the correct answer.

 

[Amundies]

13 also asks what polymer was most likely to have been used in the manufacture of the cup, rather than what polymer the cup is likely to be made of. While it could be MADE of polyethylene or polystyrene, cellulose is most likely the polymer used to manufacture the cup. That's how I interpreted the question at least.