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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
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]
A basic oxide.
State one relevant observation for the following.
Lead nitrate solution is treated with sodium hydroxide solution dropwise till it is excess.
Give a chemical test to distinguish between the given pairs of chemicals:
Lead nitrate solution and Zinc nitrate solution
Name a strong alkali.
What do you observe when freshly precipitated aluminium hydroxide reacts with caustic soda solution? Give balanced equation.
Name: A weak alkali.
When ammonium hydroxide is added to solution B, a pale blue precipitate is formed. This pale blue precipitate dissolves in excess ammonium hydroxide to give an inky blue solution. Name the cation present in solution B. What is the probable colour of solution B?
Choose the correct answer:
The metal oxide which can react with acid as well as alkali is:
State your observation when zinc chloride solution, zinc nitrate solution, and zinc sulphate solutions are added individually to barium chloride solution.
