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प्रश्न
Using sodium hydroxide solution, how will you distinguish: Zinc nitrate solution from calcium nitrate solution
How will you distinguish calcium nitrate and zinc nitrate solution?
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उत्तर १
Zinc nitrate solution from calcium nitrate solution :
(i) \[\ce{Zn(NO3) + 2NaOH -> Zn(OH)2 + 2NaNO3}\]
On further addition of NaOH, Zn(OH)2 dissolves.
(ii ) \[\ce{Ca(NO3)2 + 2NaOH -> Ca(OH)2 + 2NaNO3}\]
Ca(OH)2 precipitates are sparingly soluble in excess of sodium hydroxide.
उत्तर २
- Adding sodium hydroxide solution to zinc nitrate results in a white precipitate that is soluble in excess sodium hydroxide.
- Adding sodium hydroxide solution to calcium nitrate results in a white precipitate that is insoluble in excess of sodium hydroxide.
Notes
Students should refer to the answer according to their questions
संबंधित प्रश्न
What do you observe when caustic soda solution is added to the following solution, first a little and then in excess:
ZnSO4
Write a balanced equation for this reaction.
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Name a yellow monoxide that dissolves in hot and concentrated caustic alkali.
State what do you observe when:
Neutral litmus solution is added to alkaline solution
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.
Identify the substance Q based on the information given below:
The white crystalline solid Q is soluble in water. It liberates a pungent smelling gas when heated with sodium hydroxide solution.
Distinguish by adding:
Sodium hydroxide solution and ammonium hydroxide solution to calcium salt solution and lead salt solution.
Distinguish by adding:
Sodium hydroxide solution and ammonium hydroxide solution to lead nitrate solution and zinc nitrate solution.
A student was asked to perform an experiment in the laboratory based on the instructions given:
Observe the picture given below and state one observation for the experiment you would notice on mixing the given solution.
Name the metal hydroxides which are insoluble in caustic soda solution.
