हिंदी

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) - Chemistry (Theory)

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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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अध्याय 8: d-and ƒ-Block Elements - OBJECTIVE (MULTIPLE CHOICE) TYPE QUESTIONS [पृष्ठ ५००]

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नूतन Chemistry Part 1 and 2 [English] Class 12 ISC
अध्याय 8 d-and ƒ-Block Elements
OBJECTIVE (MULTIPLE CHOICE) TYPE QUESTIONS | Q 62. | पृष्ठ ५००
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