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For the four successive transition elements (Cr, Mn, Fe and Co), the stability of + 2 oxidation state will be there in which of the following order? (At. nos. Cr = 24, Mn = 25, Fe = 26, Co = 27)
- a)Fe > Mn > Co > Cr
- b)Mn > Fe > Cr > Co
- c)Cr > Mn > Co > Fe
- d)Co > Mn > Fe > Cr
Correct answer is option 'B'. Can you explain this answer?
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For the four successive transition elements (Cr, Mn, Fe and Co), the s...
Mn has most stable +2 stable because Mn+2 had d5 configuration which is most stable.
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For the four successive transition elements (Cr, Mn, Fe and Co), the s...
The Stability of 2 Oxidation State in Transition Elements
The stability of the +2 oxidation state in transition elements can be determined by considering various factors such as electron configuration, atomic size, and ionization energy. Let's examine the stability of the +2 oxidation state for the four successive transition elements: Cr, Mn, Fe, and Co.
1. Chromium (Cr)
- Cr has an electron configuration of [Ar] 3d^5 4s^1.
- When it loses two electrons to form the +2 oxidation state, the electron configuration becomes [Ar] 3d^4.
- The half-filled 3d subshell in the +2 oxidation state makes Cr relatively stable.
2. Manganese (Mn)
- Mn has an electron configuration of [Ar] 3d^5 4s^2.
- When it loses two electrons to form the +2 oxidation state, the electron configuration becomes [Ar] 3d^5.
- The half-filled 3d subshell in the +2 oxidation state also makes Mn relatively stable.
3. Iron (Fe)
- Fe has an electron configuration of [Ar] 3d^6 4s^2.
- When it loses two electrons to form the +2 oxidation state, the electron configuration becomes [Ar] 3d^6.
- The completely filled 3d subshell in the +2 oxidation state makes Fe more stable than Cr and Mn.
4. Cobalt (Co)
- Co has an electron configuration of [Ar] 3d^7 4s^2.
- When it loses two electrons to form the +2 oxidation state, the electron configuration becomes [Ar] 3d^7.
- The partially filled 3d subshell in the +2 oxidation state makes Co less stable than Fe.
Order of Stability of +2 Oxidation State:
Based on the analysis above, we can conclude that the stability of the +2 oxidation state for the four successive transition elements (Cr, Mn, Fe, and Co) is in the following order:
Mn > Fe > Cr > Co
Therefore, the correct answer is option B, which states that the stability of the +2 oxidation state is in the order Mn, Fe, Cr, Co.
The stability of the +2 oxidation state in transition elements can be determined by considering various factors such as electron configuration, atomic size, and ionization energy. Let's examine the stability of the +2 oxidation state for the four successive transition elements: Cr, Mn, Fe, and Co.
1. Chromium (Cr)
- Cr has an electron configuration of [Ar] 3d^5 4s^1.
- When it loses two electrons to form the +2 oxidation state, the electron configuration becomes [Ar] 3d^4.
- The half-filled 3d subshell in the +2 oxidation state makes Cr relatively stable.
2. Manganese (Mn)
- Mn has an electron configuration of [Ar] 3d^5 4s^2.
- When it loses two electrons to form the +2 oxidation state, the electron configuration becomes [Ar] 3d^5.
- The half-filled 3d subshell in the +2 oxidation state also makes Mn relatively stable.
3. Iron (Fe)
- Fe has an electron configuration of [Ar] 3d^6 4s^2.
- When it loses two electrons to form the +2 oxidation state, the electron configuration becomes [Ar] 3d^6.
- The completely filled 3d subshell in the +2 oxidation state makes Fe more stable than Cr and Mn.
4. Cobalt (Co)
- Co has an electron configuration of [Ar] 3d^7 4s^2.
- When it loses two electrons to form the +2 oxidation state, the electron configuration becomes [Ar] 3d^7.
- The partially filled 3d subshell in the +2 oxidation state makes Co less stable than Fe.
Order of Stability of +2 Oxidation State:
Based on the analysis above, we can conclude that the stability of the +2 oxidation state for the four successive transition elements (Cr, Mn, Fe, and Co) is in the following order:
Mn > Fe > Cr > Co
Therefore, the correct answer is option B, which states that the stability of the +2 oxidation state is in the order Mn, Fe, Cr, Co.
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For the four successive transition elements (Cr, Mn, Fe and Co), the s...
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For the four successive transition elements (Cr, Mn, Fe and Co), the stability of + 2 oxidation state will be there in which of the following order? (At. nos. Cr = 24, Mn = 25, Fe = 26, Co = 27)a)Fe > Mn > Co > Crb)Mn > Fe > Cr > Coc)Cr > Mn > Co > Fed)Co > Mn > Fe > CrCorrect answer is option 'B'. Can you explain this answer?
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For the four successive transition elements (Cr, Mn, Fe and Co), the stability of + 2 oxidation state will be there in which of the following order? (At. nos. Cr = 24, Mn = 25, Fe = 26, Co = 27)a)Fe > Mn > Co > Crb)Mn > Fe > Cr > Coc)Cr > Mn > Co > Fed)Co > Mn > Fe > CrCorrect answer is option 'B'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about For the four successive transition elements (Cr, Mn, Fe and Co), the stability of + 2 oxidation state will be there in which of the following order? (At. nos. Cr = 24, Mn = 25, Fe = 26, Co = 27)a)Fe > Mn > Co > Crb)Mn > Fe > Cr > Coc)Cr > Mn > Co > Fed)Co > Mn > Fe > CrCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For the four successive transition elements (Cr, Mn, Fe and Co), the stability of + 2 oxidation state will be there in which of the following order? (At. nos. Cr = 24, Mn = 25, Fe = 26, Co = 27)a)Fe > Mn > Co > Crb)Mn > Fe > Cr > Coc)Cr > Mn > Co > Fed)Co > Mn > Fe > CrCorrect answer is option 'B'. Can you explain this answer?.
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ample number of questions to practice For the four successive transition elements (Cr, Mn, Fe and Co), the stability of + 2 oxidation state will be there in which of the following order? (At. nos. Cr = 24, Mn = 25, Fe = 26, Co = 27)a)Fe > Mn > Co > Crb)Mn > Fe > Cr > Coc)Cr > Mn > Co > Fed)Co > Mn > Fe > CrCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 11 tests.
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