Question From CB Chemistry SAT II

<p>Petroleum is an important source for all of the following EXCEPT
(A) paraffin wax
(B) octane
(C) ethylene
(D) cellulose
(E) lubricating oils</p>

<p>I happened to get this one right (it’s choice D), but why are such random questions like this asked? How am I supposed to prepare for random questions like this?</p>

<p>these are the little tidbits that you should have picked up in class however a lot of the time its just luck if you know the question like here.</p>