If you are comparing 2 metals, the metal with a higher Number of free ions will react with EDTA first
EDTA is a type of chemical which binds certain metal ions such as calcium and magnesium. some of the functions of EDTA includes:
The EDTA will readily react with metals which have a hiogher number of free ions that it can bind with.
Hence we can conclude that If you are comparing 2 metals, the metal with a higher Number of free ions will react with EDTA first.
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