Question

How many EDTA (ethylenediamminetetraacetic acid) molecules are required to make an octahedral complex with a $C{a}^{2+}$ ion?

• A. Six
• B. Three
• C. One
• D. Two

Answer 1

Answer: (C)

$EDTA$ being hexadentate ligand, only one molecule is sufficient to make octahedral complex with $C{a}^{2+}$ ion.