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Sulfur dioxide, which smells like rotten eggs is formed (From Vs When)

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Sulfur dioxide, which smells like rotten eggs is formed (From Vs When)  [#permalink]

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New post 18 Nov 2014, 10:14
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Sulfur dioxide, which smells like rotten eggs, is formed in smokestacks from sulfur and oxygen, two of the major elements consumed in coal smelting, react with each other.

a) is formed in smokestacks from

b) is formed in smokestacks when

c) is formed in smokestacks, and when

d) formed in smokestacks when

e) formed in smokestacks from

Can someone please explain the difference between a) and b) particularly choosing between 'when' and 'from'

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Re: Sulfur dioxide, which smells like rotten eggs is formed (From Vs When)  [#permalink]

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New post 18 Nov 2014, 12:45
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Sulfur dioxide, which smells like rotten eggs, is formed in smokestacks from sulfur and oxygen, two of the major elements consumed in coal smelting, react with each other.

Sulfur dioxide is formed in smokestacks from sulfur and oxygen react with each other, dosen't make sense !

Sulfur dioxide is formed in smokestacks when sulfur and oxygen react with each other. sounds correct !

don't forget to read the whole sentence and to omit all the unnecessary modifiers !
hope it helps
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Re: Sulfur dioxide, which smells like rotten eggs is formed (From Vs When)  [#permalink]

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New post 25 Jul 2017, 11:50
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Sulfur dioxide, which smells like rotten eggs, is formed in smokestacks from sulfur and oxygen, two of the major elements consumed in coal smelting, react with each other.

a) is formed in smokestacks from

- We cannot say from ... react with each other, it should "when"

b) is formed in smokestacks when

- CORRECT - Logical structure of Sulfur dioxide (subject) is followed by "is formed" which is the verb

c) is formed in smokestacks, and when

- formed in smokestacks and when are not two different things here

d) formed in smokestacks when

- Missing verb after the subject "Sulfur dioxide"

e) formed in smokestacks from

- Missing verb after the subject "Sulfur dioxide"

Hence, Answer is B

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Re: Sulfur dioxide, which smells like rotten eggs is formed (From Vs When)  [#permalink]

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New post 26 Jul 2017, 22:28
aashu4uiit wrote:
Sulfur dioxide, which smells like rotten eggs, is formed in smokestacks from sulfur and oxygen, two of the major elements consumed in coal smelting, react with each other.

a) is formed in smokestacks from

b) is formed in smokestacks when

c) is formed in smokestacks, and when

d) formed in smokestacks when

e) formed in smokestacks from

Can someone please explain the difference between a) and b) particularly choosing between 'when' and 'from'


hi,

if you have looked clearly the sentence , you would have answered it correctly , see in
sentence we see,. after sulfur and oxygen, two.......smelting, (this is an additional info. about the sulfur and oxygen) , and then we see a verb reacts for which sulfur and oxygen are subject hence option B is correct

hope its clear ,appreciate through Kudos :-D
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Re: Sulfur dioxide, which smells like rotten eggs is formed (From Vs When)   [#permalink] 26 Jul 2017, 22:28
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