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Question
Write the balanced chemical equation to show the concentration of ore in Baeyer’s process.
Sodium aluminate to aluminium hydroxide
Solution
\[\ce{NaAlO2 + 2H2O -> NaOH + Al(OH)3 (↓)}\]
Explanation:
Sodium aluminate on hydrolysis at 50°C gives sodium hydroxide and precipitates aluminium hydroxide. This step is done in order to remove the impurities.
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