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avohden
Joined: 09 Jul 2013
Last visit: 14 Mar 2015
Posts: 405
Given Kudos: 630
Status:1,750 Q's attempted and counting
Affiliations: University of Florida
Location: United States (FL)
Schools: Warrington (A)
GMAT 1: 570 Q42 V28
GMAT 2: 610 Q44 V30
GMAT 3: 600 Q45 V29
GMAT 4: 590 Q35 V35
GPA: 3.45
WE:Accounting (Accounting)
E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
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69% (02:00) correct
31%
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After a recent lawsuit, Re-Fresh Air Fresheners’ most popular aerosol spray was found to contain dangerous levels of p-dichlorobenzene, a toxic substance which irritates the lungs and mucous membranes and may cause cancer. The company decided to retool its aerosol spray formula and successfully removed all p- dichlorobenzene from its line of household sprays. Re-Fresh Air Fresheners’ aerosol sprays are now less toxic to consumers than ever before.
Which of the following, if true, most weakens the author’s conclusion?
A. The company’s most popular aerosol spray has always contained ammonia, which reacts with chlorinated products to produce deadly chloramine gas.
B. Some people who drink water containing p-dichlorobenzene for many years have become anemic.
C. P-dichlorobenzene has been used widely in Europe for many years as a room deodorizer with no complaints or significant lawsuits.
D. Aerosol propellants still used in some of the retooled formulas may be flammable and may cause nervous system damage if inhaled.
E. Re-Fresh Air Fresheners’ new formula for its most popular aerosol spray now contains trace amounts of petroleum distillates, which are flammable, and may cause fatal pulmonary edema in sensitive individuals.
Which of the following, if true, most weakens the author’s conclusion?
A. The company’s most popular aerosol spray has always contained ammonia, which reacts with chlorinated products to produce deadly chloramine gas.
B. Some people who drink water containing p-dichlorobenzene for many years have become anemic.
C. P-dichlorobenzene has been used widely in Europe for many years as a room deodorizer with no complaints or significant lawsuits.
D. Aerosol propellants still used in some of the retooled formulas may be flammable and may cause nervous system damage if inhaled.
E. Re-Fresh Air Fresheners’ new formula for its most popular aerosol spray now contains trace amounts of petroleum distillates, which are flammable, and may cause fatal pulmonary edema in sensitive individuals.
10 Sep 2016, 08:36
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oishik2910
A and D: Both can be eliminated using the same reasoning - In each of the options, the harmful criterion mentioned was previously present as well in the aerosol spray (A: "has always contained" / D: "still used") - there has been no CHANGE in toxicity because of these two criteria. Because p-dichlorobenzene has been eliminated, whereas these two criteria mentioned in A and D have not changed, the overall toxicity has been reduced. Thus these two options do not weaken the argument.
Option E on the other hand discusses about a substance that increases the toxicity of the aerosol because this substance was not there in the spray before ("now contains") - therefore it is possible that the reduction in toxicity because of elimination of p-dichlorobenzene is offset by the use of this petroleum distillate.
(The flammability is irrelevant as you have correctly identified.)
General Discussion
avohden
Joined: 09 Jul 2013
Last visit: 14 Mar 2015
Posts: 405
Given Kudos: 630
Status:1,750 Q's attempted and counting
Affiliations: University of Florida
Location: United States (FL)
Schools: Warrington (A)
GMAT 1: 570 Q42 V28
GMAT 2: 610 Q44 V30
GMAT 3: 600 Q45 V29
GMAT 4: 590 Q35 V35
GPA: 3.45
WE:Accounting (Accounting)
01 Nov 2013, 18:37
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The conclusion is that the "aerosol sprays are now less toxic to consumers than ever before." but as a result of what?
The premise is that the company removed the "dangerous levels of p-dichlorobenzene, a toxic substance which
irritates the lungs and mucous membranes and may cause cancer."
In answer A, the fact that ammonia has always been in the formula has no bearing on the lower toxicity of the new formula. Its just one chemical in the spray that is toxic. The answer does not strengthen or weaken the conclusion. It merely states a fact about the aerosol spray that was not included in the question stimulus.
Per my Princeton Review guide, the answer to a weaken question will attack an assumption or provide information that makes the conclusion not true.
I guess an assumption in the argument is that when the company retooled the formula they didn't add any new chemicals that would be considered a toxic substance. Answer A does address this assumption or provide any new information as a result of the new formula.
The premise is that the company removed the "dangerous levels of p-dichlorobenzene, a toxic substance which
irritates the lungs and mucous membranes and may cause cancer."
In answer A, the fact that ammonia has always been in the formula has no bearing on the lower toxicity of the new formula. Its just one chemical in the spray that is toxic. The answer does not strengthen or weaken the conclusion. It merely states a fact about the aerosol spray that was not included in the question stimulus.
Per my Princeton Review guide, the answer to a weaken question will attack an assumption or provide information that makes the conclusion not true.
I guess an assumption in the argument is that when the company retooled the formula they didn't add any new chemicals that would be considered a toxic substance. Answer A does address this assumption or provide any new information as a result of the new formula.
