Even at pH values near 7.0 some colloids such as iron and aluminum oxides have negative surface charges less than 10 cmol_c/kg.

Name: Even at pH values near 7.0 some colloids such as iron and aluminum oxides have negative surface charges less than 10 cmol c /kg.
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Quizplus · Accepted Answer

This statement is true. Colloids such as iron and aluminum oxides can have negative surface charges even at pH values near 7.0, and their charge is typically expressed in cmol_c/kg.

Even at PH Values near 7