Water Nuggets Practice Exam

Question: 1 / 400

When using an amperometric titrator to check chlorine residual, what color will the water sample change to?

Pink

Red

Purple

None of the above

In the context of an amperometric titration for measuring chlorine residual, the process does not involve a color change of the sample itself. Instead, amperometric titration measures the electric current produced during the reaction between the chlorine and a titrant, which allows for the determination of chlorine concentration without a colorimetric indication. This method focuses on the electrical signal rather than a visual color change.

The other options suggest specific colors that might imply a chemical reaction is visibly indicated by a color change, which is not the case for an amperometric titrator as it relies on measuring current, not color transitions. Therefore, the correct understanding of this method leads to recognizing that there will be no distinct color change, making "none of the above" the accurate choice.

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