For the four successive transition elements $(C r, M n, F e a n d C o)$ , the stability of $+ 2$ oxidation state will be there in which of the following order?

M n > F e > C r > C o

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F e > M n > C o > C r

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C o > M n > F e > C r

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C r > M n > C o > F e

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Solution

The correct option is A $M n > F e > C r > C o$
$M n > F e > C r > C O$ , stability of $+ 2$ oxidation states of respective elements.

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Similar questions

For the four successive transition elements (Cr, Mn, Fe and Co), what is the order of stability of their +2 states?

(At. Nos. Cr = 24, Mn = 25, Fe = 26, Co = 27)

E^{0} M^{2 +} / M

V^{2 +} < C r^{2 +} < M n^{2} < F e^{2 +}

N i^{2 +} < C o^{2 +} < F e^{2 +} < M n^{2 +}

C o^{3 +} < F e^{3 +} < C r^{3 +} < S c^{3 +}

S c < T i < C r < M n

| E_{M^{n +} / M}^{\circ} |

C r, M n, F e

C o

E_{M^{2 +} / M}^{o}

C r, M n, F e

C o

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