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

$(a)\;Two\qquad(b)\;Six\qquad(c)\;Three\qquad(d)\;One$

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2 Answers

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Only one molecule of EDTA is used.
Hence (d) is the correct answer.
answered Oct 30, 2013 by sreemathi.v
 
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An octahedral complex with ca2+ is two
answered Oct 29 by saleraman
 

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