In the Hoopes process,what is the bauxite ore | vedclass

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(A) The $Hoopes$ process is an electrolytic refining method used for the purification of aluminum. However,the question refers to the extraction of al

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$NaOH$ (concentrated)

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(A) The $Hoopes$ process is an electrolytic refining method used for the purification of aluminum. However,the question refers to the extraction of aluminum from bauxite ore. The $Bayer$ process is used for the purification of bauxite,where bauxite ore is treated with concentrated $NaOH$ to form sodium aluminate. The $Hoopes$ process is specifically for refining aluminum metal,not for treating bauxite ore. Given the options provided,$NaOH$ (concentrated) is the reagent used in the $Bayer$ process for bauxite digestion.

Metal	Ores and Composition
$Aluminium$	$Bauxite: AlO_{x}(OH)_{3-2x} (0 < x < 1)$; $Kaolinite: [Al_{2}(OH)_{4}Si_{2}O_{5}]$
$Iron$	$Haematite: Fe_{2}O_{3}$; $Magnetite: Fe_{3}O_{4}$; $Siderite: FeCO_{3}$; $Iron pyrites: FeS_{2}$
$Copper$	$Copper pyrites: CuFeS_{2}$; $Malachite: CuCO_{3} \cdot Cu(OH)_{2}$; $Cuprite: Cu_{2}O$; $Copper glance: Cu_{2}S$
$Zinc$	$Zinc blende or Sphalerite: ZnS$; $Calamine: ZnCO_{3}$; $Zincite: ZnO$

In the $Hoopes$ process,what is the bauxite ore treated with?

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