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प्रश्न
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. no.: Cr = 24, Mn = 25, Fe = 26, Co = 27)
विकल्प
Fe > Mn > Co > Cr
Co > Mn > Fe > Cr
Cr > Mn > Co > Fe
Mn > Fe > Cr > Co
MCQ
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उत्तर
Mn > Fe > Cr > Co
Explanation:
The +2 oxidation state means the atom has lost two electrons. The stability of the +2 state depends on the electronic configuration of the ion formed. The more stable the electron configuration, the more stable the oxidation state.
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