The species that cannot act as an ambidentate ligand is:
1. | \(\mathrm{CN}^-\) | 2. | \(\mathrm{NO}^-_2\) |
3. | \(\mathrm{SCN}^-\) | 4. | \(\mathrm{NH_3}\) |
Among the following, the compound that has the maximum coordination number is/are:
1. [Co(NH3)6]3+
2. [Cr(C2O4)3]3-
3. [CoCl3(H2O)3]
4. All of the above have the same coordination number
The denticity of EDTA is:
1. | Monodentate | 2. | Hexadentate |
3. | Bidentate | 4. | Tridentate |
A complex ion among the following can 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+
The incorrect option among the following is:
1. | [Co(NO2)(H2O)(en)2]Cl2, [CoCl(NO2)(en)2]Cl·H2O | Hydrate isomerism |
2. | [Cu(NH3)4[PtCl4], [CuCl(NH3)3][PtCl3(NH3)] | Co-ordination isomerism |
3. | [Ni(CN)(H2O)(NH3)4]Cl, [NiCl(H2O)(NH3)4]CN | Ionization isomerism |
4. | [Cr(NO2)(NH3)5][ZnCl4], [Cr(NO3)(NH3)5][ZnCl4] | Linkage isomerism |
The correct statements about ethane-1,2-diamine as a ligand are:
(a) | It is a neutral ligand |
(b) | It is a bidentate ligand |
(c) | It is a chelating ligand |
(d) | It is a unidentate ligand |
1. | a and b | 2. | b and c |
3. | a, b and c | 4. | a, c and d |