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प्रश्न
What do you observe when caustic soda solution is added to the following solution: first a little and then in excess : ZnSO4
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उत्तर
Addition of caustic soda to ZnSO4 solution:
\[\ce{ZnSO4 + 2NaOH ->\underset{\text{White gelatinous ppt.}}{Zn(OH)2 v + Na2SO4}}\]
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संबंधित प्रश्न
Choose the most appropriate answer from the following list of oxides which fit the description
[SO2, SiO2, Al2O3, MgO, CO, Na2O]
An oxide which dissolves in water forming an acid
Write balanced equation for a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.
What do you observe when freshly precipitated aluminium hydroxide reacts with caustic soda solution? Give balanced equation.
Name the metal hydroxides which are :
(a) Insoluble (b) Soluble in
(i) Caustic soda solution (ii) Ammonium hydroxide solution.
Name: A strong alkali
Name: A weak alkali.
Name a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.
Fill in the blank.
The hydroxide which is soluble in excess of NaOH is _________ [Zn(OH)2 / Fe(OH)3 / Fe(OH)2].
Fill in the blank.
To distinguish soluble salts of zinc and lead ______ [NaOH / NH4OH]can be used.
Write balanced equations for a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.
