Which of the following represents the correct order of the properties indicated?

{N i}^{2 +} > {C r}^{2 +} > {F e}^{2 +} > {M n}^{2 +}

(size)

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S c > T i > C r > M n

(size)

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

(unpaired electron)

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{C r}^{3 +} > {C r}^{2 +}

(magnetic moment)

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Solution

The correct options are
B $S c > T i > C r > M n$ (size)
C ${N i}^{2 +} < {C o}^{2 +} < {F e}^{2 +} < {M n}^{2 +}$ (unpaired electron)

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Similar questions

Q. Which of the following arrangments does not represent the correct order of the property stated against it?
(1)

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

: paramagnetic behaviour
(2)

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

: ionic size
(3)

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

: stability in aqueous solution
(4)

S c < T i < C r < M n

: number of oxidation states

Q. Magnetic moments of

M^{2 +}

ions (divalent cations ) of 3d-series in the decreasing order is :

Z n^{2 +} > S c^{2 +} = C u^{2 +} > T i^{2 +} = N i^{2 +} > V^{2 +} = C o^{2 +} > C r^{2 +} = F e^{2 +} > M n^{2 +}

Is the above statement true?

The $d$ electron configuration of $C r^{2 +}, M n^{2 +}, F e^{2 +}$ and $N i^{2 +}$ are $3 d^{4}, 3 d^{5}, 3 d^{6}$ and $3 d^{8}$ respectively. Which one of the following aqua complexes will exhibit the maximum paramagnetic behaviour?

Q. Magnetic moment 2.83 BM is given by which of the following ions?
(At. nos. Ti = 22, Cr = 24, Mn = 25, Ni = 28)

Magnetic moment of which ion is 2.88 BM ?

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Which of the following represents the correct order of the properties indicated?

The correct options are B Sc>Ti>Cr>Mn (size) C Ni2+<Co2+<Fe2+<Mn2+ (unpaired electron)

The correct options are
B $S c > T i > C r > M n$ (size)
C ${N i}^{2 +} < {C o}^{2 +} < {F e}^{2 +} < {M n}^{2 +}$ (unpaired electron)