First slide
Stability of complexes
Question

Statement 1: K2NiEDTA is more stable than K3AlC2O43.

Statement 2: Nickel (Ni) is a transition element while aluminium (Al) is non-transition element.

Easy
Solution

Both statements are true but the greater stability is due to greater number of chelate ring (five) formed by EDTA than by oxalate.

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