Coal contains an impurity that reacts with oxygen during the combustion process,producing oxides that are major environmental pollutants.This impurity is:
A)acid rain
B)nitrogen
C)sulfur
D)carbon dioxide
E)peat

Question

Quizplus · Accepted Answer

Sulfur is a common impurity found in coal that reacts with oxygen during combustion, producing sulfur dioxide (SO2), which is a major contributor to acid rain and a primary ingredient in the formation of PM2.5 (fine particulate matter) that can cause respiratory problems. Nitrogen and carbon dioxide are also produced during combustion but are not impurities in coal. Peat is an early stage of coal formation and not a common impurity in coal.

Coal Contains an Impurity That Reacts with Oxygen During the Combustion