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The order of stability of metal oxides i...

The order of stability of metal oxides is

A

`Cr_(2)O_(3)ltMgOltAl_(2)O_(3)ltFe_(2)O_(3)`

B

`Fe_(2)O_(3)ltCr_(2)O_(3)ltAl_(2)O_(3)ltMgO`

C

`Fe_(2)O_(3)ltAl_(2)O_(3)ltCr_(2)O_(3)ltMgO`

D

`Al_(2)O_(3)ltMgOltFe_(2)O_(3)ltCr_(2)O_(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
As stability is directly related to lattice energy and lattice energy depends on charge and size of ions. So, the order is:
`Fe_(2)O_(3)ltCr_(2)O_(3)ltAl_(2)O_(3)ltMgO`
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