Multiple choice

S in the crude oil can be removed by treating with

  1. iron oxide

  2. copper oxide

  3. zinc oxide

  4. magnesium oxide
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sulfur in crude oil is commonly removed using copper oxide through processes like copper sweetening. The copper oxide reacts with sulfur compounds to form copper sulfide, effectively removing sulfur impurities. Iron oxide, zinc oxide, and magnesium oxide are not typically used for this specific desulfurization purpose.

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