Chemistry, asked by gayathridevi17, 1 year ago

what are the ions present in alumina ​

Answers

Answered by grishma84
2
alumina is a metal. Metals lose electrons. It has three electrons in the outermost energy level; therefore, it loses three electrons and forms a +3 ion called an aluminum ion. Oxygen, of course, takes on a -2 charge to form an oxide ion.

that is the reason why the ions present in alumina

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Answered by kingofself
1

Answer:

Alumina has \mathbf{A l}^{3+} and O^{2-} ions.

Explanation:

  • Aluminium oxide is called as alumina.
  • Molecular formula of alumina is \mathrm{Al}_{2} \mathrm{O}_{3} and it is formed from the bauxite ore.
  • These ores are widely available in various tropical and subtropical regions.
  • By using the Bayer’s process we can extract the alumina from bauxite ore.
  • Alumina has amphoteric nature. It is available in crystalline form. It has dielectric properties.
  • Alumina can be dissociates in\mathbf{A l}^{3+} and O^{2-}ions in aqueous solution.
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