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प्रश्न
What do you observe when freshly precipitated aluminium hydroxide reacts with caustic soda solution? Give a balanced equation.
What is observed on the reaction of aluminium hydroxide with caustic soda solution?
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उत्तर
Adding excess caustic soda solution dissolves the white precipitate to form a clear, colourless solution.
\[\ce{Al(OH)3 + NaOH ->\underset{Sodium aluminate}{NaAlO2} + 2H2O}\]
संबंधित प्रश्न
When a metallic oxide is dissolved in water, the solution formed has a high concentration of ____________ ions (H+, h3O+, OH-)
Choose the most appropriate answer from the following list of oxides which fit the description.
[SO2, SiO2, Al2O3, MgO, CO, Na2O]
An amphoteric oxide
Name a strong alkali.
Name a weak alkali.
What do you observe when caustic soda solution is added to the following solution: first a little and then in excess : CuSO4
Name: Two bases which are not alkalis but dissolve in strong alkalis.
Name : A yellow monoxide that dissolves in hot and concentrated caustic alkali.
Choose the correct answer:
The metal oxide which can react with acid as well as alkali is:
Write balanced equations for a metal that evolves into a gas which burns with a pop sound when boiled with alkali solutions.
Write balanced equation for a metal that evolves a gas which burns with a pop sound when boiled with alkali solution.
