In the alumino thermic process the role of aluminium is of a _______.

sulphurising agent

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reducing agent

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hydrogenating agent

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oxidising agent

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Solution

The correct option is B reducing agent
Aluminium is a strong reducing agent. When a mixture of aluminium powder and iron oxide is heated, the later is reduced to the metal iron. The reaction is represented as:

${Fe}_{2} O_{3} + 2 Al \to 2 Fe + {Al}_{2} O_{3} + heat$

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