Dilution is used to achieve what effect?

Dilution is used to achieve what effect?

• A. To increase the concentration of contaminants
• B. To neutralize hazardous substances
• C. To reduce concentration by adding water
• D. To remove contaminants from large numbers

Answer: (C)

Dilution lowers how concentrated a contaminant is by adding solvent, typically water. By spreading the same amount of contaminant over a larger volume, its concentration per unit of volume drops, which helps reduce hazards and makes handling, sampling, or measurement safer and more feasible. That’s exactly what the option describes: reducing concentration by adding water. It doesn’t increase concentration, nor does it chemically neutralize the substance or remove contaminants. Those would be separate actions (increasing concentration, neutralization, or removal).

Dilution lowers how concentrated a contaminant is by adding solvent, typically water. By spreading the same amount of contaminant over a larger volume, its concentration per unit of volume drops, which helps reduce hazards and makes handling, sampling, or measurement safer and more feasible. That’s exactly what the option describes: reducing concentration by adding water.

It doesn’t increase concentration, nor does it chemically neutralize the substance or remove contaminants. Those would be separate actions (increasing concentration, neutralization, or removal).