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
unpredicted
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^(@)` for the formation of `Al_(2)O_(3)`is lower in comparison to `DeltaG^(@)`for the formation of `Cr_(2)O_(3)`.


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