EDTA is the most common titrant used in complex-formation titrations. What does EDTA stand for and what type of ligand ?
A. ethylenediaminetetraacetic acid // tetradentate ligand
B. ethylenediaminetetraoxalic acid // tetradentate ligand
C. ethylenediaminetetraacetic acid // hexadentate ligand
D. ethylenediaminetetraoxalic acid // hexadentate ligand
