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Analytical Chemistry Uses of Ammonium Hydroxide and Sodium Hydroxide — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10ChemistryAnalytical Chemistry Uses of Ammonium Hydroxide and Sodium Hydroxide1 Mark
Question
What is observed when hot concentrated caustic soda solution is added to Aluminium. Write balanced equations.
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Answer

$2 Al +2 NaOH +2 H _2 O \rightarrow 2 Na _2 AlO _2+3 H _2$

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