Red precipitate is obtained when ethanol solution of dimethylglyoxime is added to ammoniacal Ni(II).
Which of the following statements is not true ?

1.  Complex has symmetrical H-bonding.
2.  Red complex has a tetrahedral geometry.
3.  Dimethylglyoxime functions as bidentate ligand.
4.  Red complex has a square planar geometry.

Subtopic:  Ligands |
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A complex of ions among the following that is expected to absorb visible light, is:
(At. no. Zn = 30, Sc = 21, Ti = 22, Cr = 24)

1. [Sc(H2O)3(NH3)3]3+

2. [Ti(en)2 (NH3)2]4+

3. [Cr(NH3)6]3+

4. [Zn(NH3)6]2+

Subtopic:  Introduction, Classification and Nomenclature | Ligands |
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Which of the following complexes has the highest paramagnetic behaviour?

(where gly = glycine, en = ethylenediamine, ox = oxalate ion and bpy = bipyridyl moieties )
(At no : Ti= 22, V = 23, Fe = 26, Co = 27)

1. [V(gly)2(OH)2(NH3)2]+

2. [Fe(en)(bpy)(NH3)2]2+

3.  [Co(ox)2(OH)2]-

4. [Ti(NH3)6]3+

Subtopic:  Ligands | VBT, CFT & their Limitations |
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CFSE (in octahedral field) will be maximum in  -


(Atomic number Co = 27)

1.  CoH2O63+

2.  CoNH363+

3.  CoCN63-

4.  CoC2O433-

Subtopic:  Ligands |
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