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The compound formed when sodium hydroxide
reacts with Aluminium is:
(A) Sodium zincate
(B) Sodium oxide
(C) Sodium aluminate (D) Sodium carbonate
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Sagot :

Final answer:

Sodium aluminate is formed when sodium hydroxide reacts with aluminum in a process crucial for aluminum production.


Explanation:

Sodium aluminate is the compound formed when sodium hydroxide reacts with aluminum. The reaction produces a soluble compound, Na[Al(OH)4], where aluminum adopts a +3 charge in the ionic compound, leading to the formula NaAl(OH)4.

Extraction of aluminum from bauxite involves a reaction with hot sodium hydroxide, resulting in the formation of soluble sodium aluminate while impurities remain undissolved. This process is crucial in the production of aluminum.


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