Q. No.The correct electronic configuration of the central atom in based on crystal field theory is:
1.
\(e^4 ~t_{2 g}^2
\)
2.
\(t_{2 g}^4 ~e_g^2
\)
3.
\(t_{2 g}^6 ~e_g^0
\)
4.
\(e^3 ~t^3_{2g}\)
When 0.1 mol of CoCl3(NH3)5 is treated with an excess of AgNO3, 0.2 mol of AgCl is obtained. The conductivity of the solution will correspond to:
| 1. | 1:3 electrolyte | 2. | 1:2 electrolyte |
| 3. | 1:1 electrolyte | 4. | 3:1 electrolyte |
Which of the following species is not expected to act as a ligand?
| 1. | \(\mathrm{NO} \) | 2. | \(\mathrm{NH}_4^{+} \) |
| 3. | \(\mathrm{NH}_2 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{NH}_2 \) | 4. | \(4. \mathrm{CO}\) |
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 |
The chemical formula for tris(ethane-1,2-diamine)iron(II) phosphate is:
1. [Fe(CH3-CH(NH2)2)3](PO4)3
2. [Fe(H2N-CH2-CH2-NH2)3](PO4)
3. [Fe(H2N-CH2-CH2-NH2)3](PO4)2
4. [Fe(H2N-CH2-CH2-NH2)3]3(PO4)2
A complex has a molecular formula MSO4Cl.6H2O. Its aqueous solution gives white precipitate with barium chloride solution and no precipitate is obtained when it is treated with silver nitrate solution.
If the secondary valence of the metal is six, the correct representation of the complex is:
1. [M(H2O)4Cl]SO4.2H2O
2. [M(H2O)6]SO4
3. [M(H2O)5Cl]SO4.H2O
4. [M(H2O)3Cl]SO4.3H2O
| 1. | Diamminechlorido(methylamine)platinum(II)chloride |
| 2. | Diamminechloro(aminomethyl)platinum(II)chlorido |
| 3. | Chlorodiammine(methylamine)platinate(II)chloride |
| 4. | Chlorido(methylamine)diammineplatinum(II)chloride |
[Cr(H2O)6]Cl3 and [Cr(H2O)5Cl2]Cl.H2O are examples of:
| 1. | Ionisation isomers | 2. | Geometrical isomers |
| 3. | Solvate isomers | 4. | Optical isomers |
Number of geometrical isomer(s) possible for the complex [Cr(C2O4)3]3- is/are:
| 1. | 1 | 2. | 3 |
| 3. | 0 | 4. | 2 |
Aqueous copper sulphate solution gives a green precipitate of A with aqueous potassium fluoride. What would be the correct molecular formula of A?
1. [CuF6]3–
2. [CuF4]2–
3. [CuF2]–
4. [CuF5]4–
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