Which one of the following metals has a different lattice from those of the others?

F e

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C o

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N i

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C u

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A g

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Solution

The correct option is B $F e$
$C o, N i, C u$ and $A g$ possess ccp (FCC) lattice at room temperature whereas $F e$ has $b c c$ lattice at room temperature but it changes to FCC lattice at $912^{o} C$ .

Option A is correct.

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Similar questions

C u {S O}_{4}

E_{{C u}^{2 +} / C u}^{o} = 0.34 V

E_{{F e / F e}^{2 +}}^{o} = 0.44 V, E_{{A l / A l}^{3 +}}^{o} = 1.66 V

E_{N i / {N i}^{2 +}}^{o} = 0.25 V, E_{{A g}^{+} / A g}^{o} = 0.80 V

Metallic radii of some transition elements are given below. Which of these elements has the highest density?

Element Fe Co Ni Cu

Metallic radii/pm 126 125 125 128

C u, A g, F e

Z n

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