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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
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संबंधित प्रश्न
Name the kind of particles present in sodium hydroxide solution.
Distinguish by adding:
(a) sodium hydroxide solution and
(b) Ammonium hydroxide solution to
(i) Calcium salt solution and lead salt solution
(ii) Lead salt solution and ferrous salt solution
(iii) copper salt solution and ferrous salt solution
(iv) Fe (II) salt solution and Fe (III) Salt solution
(v) Ferrous nitrate and lead nitrate
State what do you observe when:
Neutral litmus solution is added to alkaline solution
A white solid A when heated with sodium hydroxide solution, gives a pungent gas B, which turns red litmus blue. The solid, when dissolved in dilute nitric acid and treated with silver nitrate gives a white precipitate of C which is soluble in an ammonia solution.
State your observation of the following case :
When excess sodium hydroxide is added to calcium nitrate solution
Write balanced equation reaction of sodium hydroxide solution with iron (III) chloride solution.
Distinguish by adding:
Sodium hydroxide solution and ammonium hydroxide solution to copper salt solution and ferrous salt solution.
Distinguish by adding:
Sodium hydroxide solution and ammonium hydroxide solution to Fe(II) salt solution and Fe(III) salt solution.
What is observed when hot, concentrated caustic soda solution is added to aluminium? Write a balanced equation.
Write the word equation when ammonium salt is heated with caustic soda solution.
