A metal does not corrode when left exposed to air.It also occurs in nature the form of its oxide and is used in thermite reaction.

(a) identify the metal

(b) Describe the method used to enrich chief ore of this metal 

(c) Give two balanced chemical reaction in which this metal acts as a reducing agent.

Asked by Sahil Kazi | 30th Apr, 2014, 05:58: PM

Expert Answer:

(a) Aluminium
(b) Bayer's method is employed to enrich the chief ore of aluminium.
 
(c) Aluminium is a powerful reducing agent and when a mixture of aluminium powder and iron oxide is ignited, the latter is reduced to metal. This process is called aluminothermy.
Fe2O3  + 2Al  → 2Fe + Al2O + Heat

Answered by  | 2nd May, 2014, 09:57: AM

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