Carbon monoxide

[komal]

. Imperceptible to the eye or the ear, carbon monoxide is formed from materials containing carbon, or carbonaceous materials, are only partially combusted.

(A) carbon monoxide is formed from
(B) carbon monoxide is formed by
(C) the formation of carbon monoxide is when
(D) carbon monoxide is formed when
(E) carbon monoxide forms when its

OA D

[thephoenix]

. Imperceptible to the eye or the ear, carbon monoxide is formed from materials containing carbon, or carbonaceous materials, are only partially combusted.

(A) carbon monoxide is formed from
(B) carbon monoxide is formed by
(C) the formation of carbon monoxide is when
(D) carbon monoxide is formed when
(E) carbon monoxide forms when its

OA D

A is run on s/c IMO
B is run on s/c IMO
c is having misplaced modifier
E its lacks an antecedent

hence D it is

[bhumika.k.shah]

I honesty dint go as per the traditional method of answer solving. just tried to fit one answer option and see if it did make sense .

i found only when in the underlined part suits well . hence i eliminated A B and E

nw in C and D, C is turned upside down. hence ELIMINATE

whats left is D



hope this helps

Imperceptible to the eye or the ear, carbon monoxide is formed from materials containing carbon, or carbonaceous materials, are only partially combusted.

(A) carbon monoxide is formed from
(B) carbon monoxide is formed by
(C) the formation of carbon monoxide is when
(D) carbon monoxide is formed when
(E) carbon monoxide forms when its

OA D

[sumanr84]

. Imperceptible to the eye or the ear, carbon monoxide is formed from materials containing carbon, or carbonaceous materials, are only partially combusted.

(A) carbon monoxide is formed from
(B) carbon monoxide is formed by
(C) the formation of carbon monoxide is when
(D) carbon monoxide is formed when
(E) carbon monoxide forms when its

OA D

I was confused initially and was not able to decide b/w A,B and D. When I looked at the end of the sentence then I realized that it has to be D only.
carbon monoxide is formed when so and so, are only partially combusted.Neither FROM nor BY can fit in here.
E is passive construction that is illogical here - Eliminated

[rockeyb]

. Imperceptible to the eye or the ear, carbon monoxide is formed from materials containing carbon, or carbonaceous materials, are only partially combusted.

This is a modifier question .Carbon monoxide is imperceptible to the eye . So " Imperceptible to the eye or the ear" is the starting modifier that is modifying carbon monoxide. So eliminate C.

In E its dose not have a clear antecedent .

Comparing A, B and D only D makes sense , discard A and B.

(A) carbon monoxide is formed from
(B) carbon monoxide is formed by
(C) the formation of carbon monoxide is when
(D) carbon monoxide is formed when
(E) carbon monoxide forms when its

OA D