Coordination Compounds - Result Question 49
####55. Red precipitate is obtained when ethanol solution of dimethylglyoxime is added to ammoniacal
[2012 M]
(a) Red complex has a square planar geometry.
(b) Complex has symmetrical H-bonding
(c) Red complex has a tetrahedral geometry.
(d) Dimethylglyoxime functions as bidentate ligand.
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Solution:
- (c) Nickel ions are frequently detected by the formation of red precipitate of the complex of nickel dimethylglyoxime, when heated with dimethylglyoxime.
Dimethylglyoxime
Nickel dimethylglyoxime
Thus, the complex is square plan ar geometry.
