A____________________ titration is necessary for analytes that precipitates in the absence of EDTA,that reacts slowly with EDTA or that blocks the indicator.
A)direct
B)displacement
C)indirect
D)masking
E)back

Question

Quizplus · Accepted Answer

A back titration is used when the analyte reacts slowly with EDTA, precipitates, or interferes with the indicator, allowing for the determination of the analyte by reacting it with an excess of EDTA and then titrating the remaining EDTA.

A____________________ Titration Is Necessary for Analytes That Precipitates in the Absence