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प्रश्न
Write the observation, and balanced equation for the following reaction:
Sodium hydroxide is added dropwise to a solution of zinc sulphate, till it is in excess.
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उत्तर
Sodium hydroxide when added to zinc sulphate gives gelatinous white precipitate which dissolves in excess of sodium hydroxide.
\[\ce{ZnSO4 + 2NaOH -> Zn(OH)2 + Na2SO4}\]
\[\ce{Zn(OH)2 + 2NaOH -> Na2ZnO2}\]
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संबंधित प्रश्न
Identify the substance underlined, in the following case:
Cation that does not form a precipitate with ammonium hydroxide but forms one with sodium hydroxide.
Name the kind of particles present in sodium hydroxide solution.
Name a yellow monoxide that dissolves in hot and concentrated caustic alkali.
Name a white, insoluble oxide that dissolves when fused with caustic soda or caustic potash.
Sodium hydroxide solution is added to solution A. A white precipitate is formed which is soluble in excess sodium hydroxide. Name the metal ion present in A.
Three test tubes contain calcium nitrate solution, zinc nitrate solution and lead nitrate solution.Describe the effect of Adding sodium hydroxide solution to each portion in turn till it is in excess.
Using Sodium hydroxide solution, how would you distinguish: Zinc nitrate solution from calcium nitrate solution.
Distinguish by adding:
Sodium hydroxide solution and ammonium hydroxide solution to copper salt solution and ferrous salt solution.
Identify the cation in the following case:
Sodium hydroxide solution when added to Solution C gives a white precipitate which is insoluble in excess of sodium hydroxide solution.
Name the metal hydroxides which are insoluble in caustic soda solution.
