_______ is an impurity in many mineral ores and can cause acid rain when it escapes during the smelting process.
A) Arsenic
B) Cadmium
C) Lead
D) Sulfur
E) Zinc

Question

Quizplus · Accepted Answer

Sulfur is the impurity that causes acid rain when it is released during the smelting process. It reacts with oxygen to form sulfur dioxide (SO2) and sulfur trioxide (SO3) which then dissolve in water to form sulfuric acid (H2SO4), a major component of acid rain.

_______ Is an Impurity in Many Mineral Ores and Can