Advertisements
Advertisements
प्रश्न
Assertion: \[\ce{Cr(H2O)6]Cl2 and [Fe(H2O)6]Cl2}\] are reducing in nature.
Reason: Unpaired electrons are present in their d-orbitals.
विकल्प
Assertion and reason both are true, reason is correct explanation of assertion.
Assertion and reason both are true but reason is not the correct explanation of assertion.
Assertion is true, reason is false.
Assertion is false, reason is true.
Advertisements
उत्तर
Assertion and reason both are true but reason is not the correct explanation of assertion.
Explanation:
In the complexes, \[\ce{Co}\] exists as \[\ce{Co^{2+}}\] and \[\ce{Fe}\] as \[\ce{Fe^{2+}}\]. Both of the complexes becomes stable by oxidation of metal ion to \[\ce{Co^{3+}}\] and \[\ce{Fe^{3+}}\].
APPEARS IN
संबंधित प्रश्न
Classify the following ligands into monodentate and polydentate —
- Ammonia
- Carbon monoxide
- Ethylene diamine
- Ethylene diamine tetra acetate ion
Explain the following, giving two examples:
Coordination entity
How is Benzonitrile converted to Benzophenone?
Write structures of compounds A, B and C in of the following reactions
Write the IUPAC name of the following coordination compound:
[Cr(NH3)4(H2O)2]Cl3
The oxidation number of Fe in K4[Fe(CN)6] is ____________.
In which of the following compounds the oxidation state of the nickel atom is 0?
Which of the following complexes formed by \[\ce{Cu^2+}\] ions is most stable?
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 |
The nature of hybridisation in the ammonia molecule is
Why chelate complexes are more stable than complexes with unidentate ligands?
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).
The one that will show optical activity is: (en = ethane 1, 2-diamine)
What is meant by the chelate effect? Give an example.
What is meant by the chelate effect? Give an example.
Explain the following, giving two examples:
Coordination number
Give two examples of didentate ligands.
What is meant by ambidentate ligand?
