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प्रश्न
One chemical test that would enable you to distinguish between the following pair of chemicals. Describe what happens with each chemical or state 'no visible reaction'.
Calcium nitrate solution and zinc nitrate solution.
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उत्तर
Calcium nitrate solution and zinc nitrate solution can be distinguished by sodium hydroxide. Sodium hydroxide reacts with zinc nitrate and zinc hydroxide is formed which is soluble in excess of sodium hydroxide.
\[\ce{Zn(NO3)2(aq) + 2NaOH(aq) -> Zn(OH)2(s) + 2NaNO3(aq)}\]
Sodium hydroxide reacts with calcium nitrate and forms white ppt. of calcium hydroxide insoluble in excess of sodium hydroxide.
\[\ce{Ca(NO3)2 + 2NaOH -> Ca(OH)2 + 2NaNO3}\]
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संबंधित प्रश्न
Give a chemical test to distinguish between the given pair of chemicals:
Lead nitrate solution and zinc nitrate solution.
Name
a metallic hydroxide soluble in excess of NH4OH.
Name the metal hydroxides which are :
(a) Insoluble (b) Soluble in
(i) Caustic soda solution (ii) Ammonium hydroxide solution.
Name: Two bases which are not alkalis but dissolve in strong alkalis.
Choose the correct answer from the options given below :
Metal + alkali → salt + _________
What do you see when sodium hydroxide solution is added to zinc sulphate solution, till it is in excess?
Choose the correct answer:
The metal oxide which can react with acid as well as alkali is:
Write the equation for the following reaction :
Zinc oxide is treated with sodium hydroxide solution.
Write balanced equations for a metal that evolves into a gas which burns with a pop sound when boiled with alkali solutions.
Write balanced equations for a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.
