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Which of the following compounds shown intervalence charge transfer transition
- a)Pb3O4
- b)KCr2O7
- c)KFe[Fe(CN)6]
- d)Mn2(CO)10
Correct answer is option 'A,C'. Can you explain this answer?
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Which of the following compounds shown intervalence charge transfer tr...
**Intervalence Charge Transfer Transitions**
Intervalence charge transfer (IVCT) transitions occur when there is a transfer of electrons between two metal centers in a compound. These transitions typically involve metal ions with different oxidation states, resulting in a difference in the formal charges of the metal centers.
**a) Pb3O4**
In Pb3O4, lead (Pb) can exist in two different oxidation states: +2 and +4. The compound contains both Pb(II) and Pb(IV) ions, which allows for the possibility of IVCT transitions. The IVCT transitions in Pb3O4 involve the transfer of electrons between the Pb(II) and Pb(IV) ions. These transitions can result in the absorption of light in the visible range, leading to the compound's characteristic brown color.
**c) KFe[Fe(CN)6]**
KFe[Fe(CN)6] is a coordination compound that contains both Fe(II) and Fe(III) ions. The Fe(II) ion has a +2 oxidation state, while the Fe(III) ion has a +3 oxidation state. The IVCT transitions in KFe[Fe(CN)6] involve the transfer of electrons between the Fe(II) and Fe(III) ions. These transitions can result in the absorption of light in the visible range, leading to the compound's characteristic yellow color.
**b) KCr2O7**
KCr2O7 is a compound that contains chromium (Cr) in the +6 oxidation state. While it does involve a difference in oxidation states, it does not contain two metal ions that can undergo IVCT transitions. Therefore, KCr2O7 does not exhibit IVCT transitions.
**d) Mn2(CO)10**
Mn2(CO)10 is a coordination compound that contains manganese (Mn) in the +2 oxidation state. It does not contain two metal ions with different oxidation states that can undergo IVCT transitions. Therefore, Mn2(CO)10 does not exhibit IVCT transitions.
In conclusion, the compounds that exhibit IVCT transitions are Pb3O4 (option A) and KFe[Fe(CN)6] (option C). These compounds contain metal ions with different oxidation states, allowing for the transfer of electrons and absorption of light in the visible range.
Intervalence charge transfer (IVCT) transitions occur when there is a transfer of electrons between two metal centers in a compound. These transitions typically involve metal ions with different oxidation states, resulting in a difference in the formal charges of the metal centers.
**a) Pb3O4**
In Pb3O4, lead (Pb) can exist in two different oxidation states: +2 and +4. The compound contains both Pb(II) and Pb(IV) ions, which allows for the possibility of IVCT transitions. The IVCT transitions in Pb3O4 involve the transfer of electrons between the Pb(II) and Pb(IV) ions. These transitions can result in the absorption of light in the visible range, leading to the compound's characteristic brown color.
**c) KFe[Fe(CN)6]**
KFe[Fe(CN)6] is a coordination compound that contains both Fe(II) and Fe(III) ions. The Fe(II) ion has a +2 oxidation state, while the Fe(III) ion has a +3 oxidation state. The IVCT transitions in KFe[Fe(CN)6] involve the transfer of electrons between the Fe(II) and Fe(III) ions. These transitions can result in the absorption of light in the visible range, leading to the compound's characteristic yellow color.
**b) KCr2O7**
KCr2O7 is a compound that contains chromium (Cr) in the +6 oxidation state. While it does involve a difference in oxidation states, it does not contain two metal ions that can undergo IVCT transitions. Therefore, KCr2O7 does not exhibit IVCT transitions.
**d) Mn2(CO)10**
Mn2(CO)10 is a coordination compound that contains manganese (Mn) in the +2 oxidation state. It does not contain two metal ions with different oxidation states that can undergo IVCT transitions. Therefore, Mn2(CO)10 does not exhibit IVCT transitions.
In conclusion, the compounds that exhibit IVCT transitions are Pb3O4 (option A) and KFe[Fe(CN)6] (option C). These compounds contain metal ions with different oxidation states, allowing for the transfer of electrons and absorption of light in the visible range.
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Community Answer
Which of the following compounds shown intervalence charge transfer tr...
Option a)
Pb3O4(red lead) contains Pb(II) and Pb(IV).due to electron transfer from Pb(II) to Pb(IV),it gives intense red colour..
option c)
KFe[Fe(CN)6] PRUSSIAN BLUE shows intense blue colour because of electron transfer from Fe(II) to Fe(III),..
Fe2+ is octahedrally co-ordinated with C atom of CN-, Fe3+ is octahedrally co-ordinated with N atom of CN-
so both options a) and c) are correct
Pb3O4(red lead) contains Pb(II) and Pb(IV).due to electron transfer from Pb(II) to Pb(IV),it gives intense red colour..
option c)
KFe[Fe(CN)6] PRUSSIAN BLUE shows intense blue colour because of electron transfer from Fe(II) to Fe(III),..
Fe2+ is octahedrally co-ordinated with C atom of CN-, Fe3+ is octahedrally co-ordinated with N atom of CN-
so both options a) and c) are correct
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Which of the following compounds shown intervalence charge transfer transitiona)Pb3O4b)KCr2O7c)KFe[Fe(CN)6]d)Mn2(CO)10Correct answer is option 'A,C'. Can you explain this answer?
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