Co-Ordination Compounds Question 52
Question: Which of the following complexes has the highest stability constant at 298 K
Options:
A) $ {{[ CdCl_4 ]}^{2-}} $
B) $ {{[ CdBr_4 ]}^{2-}} $
C) $ {{[ CdI_4 ]}^{2-}} $
D) $ {{[ Cd{{( CN )}_4} ]}^{2-}} $
Show Answer
Answer:
Correct Answer: D
Solution:
The cyano and ammine complexes are far more stable than those formed by halide ions.
This is due to the fact that $ NH_3 $ and $ C{N^{-}} $ are strong lewis bases.
