1.

When compared to DeltaG^(@) for the formation of Al_(2)O_(3), the DeltaG^(@) for the formation of Cr_(2)O_(3) is

Answer»

same
Upredicted
Higher
Lower

Solution :Al acts as a good reducing agent and reduces oxides of metals LIKE Cr, Fe, MN etc.
`Cr_(2)O_(3)+2Alto2Cr+Al_(2)O_(3)+`heat, THEREFORE `DeltaG^(o)` for the formation of `Al_(2)O_(3)` is lower in comparison to `DeltaG^(o)` for the formation of `Cr_(2)O_(3)`.


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