It is currently 20 Feb 2018, 15:41

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Although fullerenes - spherical molecules made entirely of

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Manager
Manager
avatar
Joined: 30 May 2009
Posts: 214
Although fullerenes - spherical molecules made entirely of [#permalink]

Show Tags

New post 27 Jun 2009, 19:36
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 100% (00:40) wrong based on 7 sessions

HideShow timer Statistics

Although fullerenes - spherical molecules made entirely of carbon - were first found in the laboratory, they have since been found in nature, formed in fissures of the rare mineral shungite. Since laboratory synthesis of fullerenes requires distinctive conditions of temperature and pressure, this discovery should give geologists a test case for evaluating hypothesis about the state of the Earth's crust at the time these naturally occuring fullerenes were formed.

Which of the following, if true, most seriously undermines the argument?

(A) Confirming that the shungite genuinely contained fullerenes took careful experimentation.
(B) Some fullerenes have also been found on the remains of a small meteorite collided with a spacecraft.
(C) The mineral shungite itself contains large amounts of carbon, from which the fullerenes apparently formed.
(D) The naturally occuring fullerenes are arranged in a previously unknown crystalline structure.
(E) Shungite itself is formed only under distictive conditions.
1 KUDOS received
Manager
Manager
avatar
Joined: 15 May 2009
Posts: 168
Re: Fullerenes and Shungite [#permalink]

Show Tags

New post 27 Jun 2009, 19:50
1
This post received
KUDOS
sdrandom1 wrote:
Although fullerenes - spherical molecules made entirely of carbon - were first found in the laboratory, they have since been found in nature, formed in fissures of the rare mineral shungite. Since laboratory synthesis of fullerenes requires distinctive conditions of temperature and pressure, this discovery should give geologists a test case for evaluating hypothesis about the state of the Earth's crust at the time these naturally occuring fullerenes were formed.

Which of the following, if true, most seriously undermines the argument?

(A) Confirming that the shungite genuinely contained fullerenes took careful experimentation.
(B) Some fullerenes have also been found on the remains of a small meteorite collided with a spacecraft.
(C) The mineral shungite itself contains large amounts of carbon, from which the fullerenes apparently formed.
(D) The naturally occuring fullerenes are arranged in a previously unknown crystalline structure.
(E) Shungite itself is formed only under distictive conditions.


This is a wordy & difficult one. From what I can gather, fullerenes need specific conditions to form; before the discovery, they were only formed to lab conditions. Now they've been found in nature, so the conclusion is that during the time of these naturally occurring fullerenes, the Earth's environment was similar to that of the lab.

I think the answer (D) undermines this conclusion because it suggests that the fullerenes found in nature are different from those formed in the lab, so Earth's natural environmental conditions at the time of these natural formations are NOT necessarily similar to those of the lab.
Manager
Manager
avatar
Joined: 30 May 2009
Posts: 214
Re: Fullerenes and Shungite [#permalink]

Show Tags

New post 27 Jun 2009, 19:55
Thanks so much for the explanation GMATAddict. You are so smart......you should take GMAT right away....not sure whhy you are still preparing...

I picked (E) like a dumbo :(
Manager
Manager
avatar
Joined: 15 May 2009
Posts: 168
Re: Fullerenes and Shungite [#permalink]

Show Tags

New post 27 Jun 2009, 23:27
sdrandom1 wrote:
Thanks so much for the explanation GMATAddict. You are so smart......you should take GMAT right away....not sure whhy you are still preparing...

I picked (E) like a dumbo :(


To be honest, the only reason I got this question right was because I've seen it on OG12. I got it wrong the first time too. However, now that I've fully explained it to you, I fully understand why (D) is the right answer.

I take (or as forum members like to say - 'GIVE') the GMAT on the 15th... wish me luck... I find myself easily irritable as the pressure intensifies. :?

Anyone know why the verb "give" is used for the GMAT exam instead of the more idiomatic verb "take" (I find the unidiomatic use rather ironic, perhaps that's the point?)?
Re: Fullerenes and Shungite   [#permalink] 27 Jun 2009, 23:27
Display posts from previous: Sort by

Although fullerenes - spherical molecules made entirely of

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  

Moderators: GMATNinjaTwo, GMATNinja



GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.