Co-Ordination Compounds Question 234
Question: Which of the following order of stability of complex ion is Incorrect?
Options:
A) $ {{[Fe{{(C_2O_4)}_3}]}^{3-}}<{{[Fe{{(H_2O)}_6}]}^{3+}} $
B) $ {{[Fe(edta)]}^{-}}>{{[Fe{{(en)}_3}]}^{3+}} $
C) $ {{[ Ni{{( en )}_2} ]}^{2+}}>[ Ni{{( dmg )}_2} ] $
D) $ {{[ Fe{{( CN )}_6} ]}^{3-}}>{{[ Fe{{( CN )}_6} ]}^{4-}} $
Show Answer
Answer:
Correct Answer: C
Solution:
As number of stable rings increases stability of complex compound also increases due to chelation effect.
Number of rings in $ {{[Ni{{(en)}_2}]}^{2+}}=2 $ Number of rings in $ [ Ni{{(dmg)}_2} ]=4 $
