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Explain the following reactions Hydrated alumina is treated with aqueous NaOH solution.

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प्रश्न

Explain the following reaction.

Hydrated alumina is treated with aqueous NaOH solution.

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उत्तर

When hydrated alumina is added to sodium hydroxide, the former dissolves in the latter because of the formation of sodium meta-aluminate.

\[\ce{Al_2O_3 . 2H_2O + 2NaOH -> 2 NaAlO_2+ 3H_2O}\]

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