When oxidized, iron and manganese can discolor water to which color range?

When oxidized, iron and manganese can discolor water to which color range?

• A. Bright green to pale yellow
• B. Clear to blue
• C. Turbid yellow to black
• D. Brown to red

Answer: (C)

When iron and manganese are oxidized, they typically form insoluble oxides, which can lead to discoloration of water. The correct answer identifies the range of colors that indicate the presence of these oxidized minerals. Iron, when oxidized, tends to form ferric oxide, which can give water a brownish tint. Similarly, manganese can form manganese dioxide during oxidation, which can add to the color range from yellow to black as it precipitates. The combination of these two processes results in water that can appear turbid and may exhibit varying shades from yellow to black, depending on the concentration and specific conditions. The other options do not accurately represent the discoloration associated with oxidized iron and manganese. Bright green to pale yellow, clear to blue, and brown to red do not encompass the typical visual characteristics of oxidized iron and manganese in water. Therefore, recognizing the correct discoloration range of turbid yellow to black allows for better understanding and management of water quality issues related to these elements.

When iron and manganese are oxidized, they typically form insoluble oxides, which can lead to discoloration of water. The correct answer identifies the range of colors that indicate the presence of these oxidized minerals.

Iron, when oxidized, tends to form ferric oxide, which can give water a brownish tint. Similarly, manganese can form manganese dioxide during oxidation, which can add to the color range from yellow to black as it precipitates. The combination of these two processes results in water that can appear turbid and may exhibit varying shades from yellow to black, depending on the concentration and specific conditions.

The other options do not accurately represent the discoloration associated with oxidized iron and manganese. Bright green to pale yellow, clear to blue, and brown to red do not encompass the typical visual characteristics of oxidized iron and manganese in water. Therefore, recognizing the correct discoloration range of turbid yellow to black allows for better understanding and management of water quality issues related to these elements.