Advertisements
Advertisements
Question
When 0.1 mol \[\ce{CoCl3 (NH3)5}\] is treated with excess of \[\ce{AgNO3}\], 0.2 mol of \[\ce{AgCl}\] are obtained. The conductivity of solution will correspond to ______.
Options
1:3 electrolyte
1:2 electrolyte
1:1 electrolyte
3:1 electrolyte
Advertisements
Solution
When 0.1 mol \[\ce{CoCl3 (NH3)5}\] is treated with excess of \[\ce{AgNO3}\], 0.2 mol of \[\ce{AgCl}\] are obtained. The conductivity of solution will correspond to 1:2 electrolyte.
Explanation:
One mole of \[\ce{AgNO3}\] precipitates one mole of chloride ion. In the above reaction, when 0.1 mole \[\ce{CoCl3 (NH3)5}\] is treated with excess of \[\ce{AgNO3}\], 0.2 mol of \[\ce{AgCl}\] are obtained thus, there must be two free chloride ions in the solution of electrolyte.
So, molecular formula of complex will be \[\ce{[CO(NH3)5Cl]Cl2}\] and electrolytic solution must contain \[\ce{[CO(NH3)5Cl]^{2+}}\] and two CT as constituent ions. Thus, it is 1:2 electrolyte.
\[\ce{[Co(NH3)5Cl]Cl2 -> [Co(NH3)5Cl]^{2+} (aq) + 2Cl^{-} (aq)}\]
APPEARS IN
RELATED QUESTIONS
Classify the following ligands into monodentate and polydentate —
- Ammonia
- Carbon monoxide
- Ethylene diamine
- Ethylene diamine tetra acetate ion
Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complex:
[Mn(H2O)6]SO4
Amongst the following, the most stable complex is:
Write applications of co-ordination compounds in medicine and electroplating.
Write structures of compounds A, B and C in of the following reactions
Write structures of compounds A, B and C in of the following reactions
Write structures of compounds A and B of the following reaction :
Identify the correct statements for the behaviour of ethane-1, 2-diamine as a ligand.
(i) It is a neutral ligand.
(ii) It is a didentate ligand.
(iii) It is a chelating ligand.
(iv) It is a unidentate ligand.
Match the complex ions given in Column I with the colours given in Column II and assign the correct code:
| Column I (Complex ion) | Column II (Colour) |
| A. \[\ce{[Co(NH3)6]^{3+}}\] | 1. Violet |
| B. \[\ce{[Ti(H2O)6]^{3+}}\] | 2. Green |
| C. \[\ce{[Ni(H2O)6]^{2+}}\] | 3. Pale blue |
| D. \[\ce{(Ni(H2O)4 (en)]^{2+} (aq)}\] | 4. Yellowish orange |
| 5. Blue |
Match the compounds given in Column I with the oxidation state of cobalt present in it (given in Column II) and assign the correct code:
| Column I (Compound) | Column II (Oxidation state of Co) |
| A. \[\ce{[Co(NCS)(NH3)5](SO3)}\] | 1. + 4 |
| B. \[\ce{[Co(NH3)4 CL2]SO4}\] | 2. 0 |
| C. \[\ce{Na4[Co(S2O3)3]}\] | 3. + 1 |
| D. \[\ce{[Co2(CO)8]}\] | 4. + 2 |
| 5. + 3 |
Which one of the following ligands forms a chelate?
According to IUPAC nomenclatures, sodium nitroprusside is named as
Why chelate complexes are more stable than complexes with unidentate ligands?
Given below are two statements.
Statement I: In CuSO4·5H2O, Cu-O bonds are present.
Statement II: In CuSO4·5H2O, ligands coordinating with Cu(II) ion are O- and S-based ligands.
In light of the above statement, choose the correct answer from the options given below.
The equivalents of ethylene diamine required to replace the neutral ligands from the coordination sphere of the trans-complex of CoCl3.4NH3 is ______. (Round off to the Nearest Integer).
Is the central metal atom in coordination complexes a Lewis acid or a Lewis base? Explain.
What is meant by the chelate effect? Give an example.
Explain the following, giving two examples:
Heteroleptic
Give two examples of ambidentate ligands.
