Aluminium metal is frequently used as a reducing agent. why?, Chemistry

Aluminium metal is frequently used as a reducing agent for the extraction of metals such as Chromium, Manganese etc. Explain why?

Ans) The free energy change for the formation of oxide of aluminium is highly negative ( -1000 to -1100) so , it can easily reduce any metal oxide abve it easily in ellingham diamgram as it lies bottom of the ellingham diagram.

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