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प्रश्न
State your observation When excess sodium hydroxide is added to calcium nitrate solution
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उत्तर
Calcium nitrate solution on reaction with the excess of sodium hydroxide produces calcium hydroxide and sodium nitrate. Calcium nitrate reacts with the excess of sodium hydroxide to form a white precipitate of calcium hydroxide, which is sparingly soluble, and colorless sodium nitrate. The reaction is as follows:
Ca(NO3)2 + 2NaOH → Ca(OH)2 + 2NaNO3
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संबंधित प्रश्न
Identify the salts P and Q from the observations given below:
On performing the flame test salt P produces a lilac coloured flame and its solution gives a white precipitate with silver nitrate solution, which is soluble in Ammonium hydroxide solution.
Name a solution that will separate the component of the following mixture: Zn(OH)2 from Pb(OH)2
You are given a mixture of precipitated copper hydroxide and zinc hydroxide. Name a solvent which will dissolve:
Only copper hydroxide
You are given a mixture of precipitated copper hydroxide and zinc hydroxide. Name a solvent which will dissolve:
Only zinc hydroxide
You are given a mixture of precipitated copper hydroxide and zinc hydroxide. Name a solvent which will dissolve:
Both copper hydroxide and zinc hydroxide
What will you observe when barium chloride solution is added to iron(II) sulphate solution.
The questions (i) to (v) refer to the following salt solutions listed A to F :
A. Copper nitrate
B. Iron (II) sulphate
C. Iron (III) chloride
D. Lead nitrate
E. Magnesium sulphate
F. Zinc chloride
(i) Which two solutions will give a white precipitate when treated with dilute hydrochloric acid followed by barium chloride solution/
(ii) Which two solutions will give a white precipitate when treated with dilute nitric acid followed by silver nitrate solution?
(iii) Which solution will give a white precipitate when either dilute hydrochloric acid or dilute sulphuric acid is added to it?
(iv) Which solution becomes a deep/inky blue colour when excess of ammonium hydroxide is added to it?
(v) Which solution gives a white precipitate with excess ammonium hydroxide?
What do you understand by amphoteric oxide?
Name the products formed when the reaction with two different amphoteric oxides with a caustic alkali.
Which of the following about oxides is correct?
