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प्रश्न
What is observed when hot, concentrated caustic soda solution is added to aluminium? Write a balanced equation.
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उत्तर
\[\ce{2Al + \underset{concentrated}{\underset{Hot and}{2NaOH}}+ 2H2O -> \underset{(colourless)}{\underset{Sodium meta aluminate}{2NaAlO2}} + 3H2}\]
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