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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
State one relevant observation for the following.
Lead nitrate solution is treated with sodium hydroxide solution dropwise till it is excess.
Name a weak alkali.
Name a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.
Name two bases which are not alkalis but dissolves in strong alkalis.
What do you observe when caustic soda solution is added to the following solution: first a little and then in excess : ZnSO4
Name: A strong alkali
Fill in the blank.
The substance/s which react with hot conc. NaOH solution and undergoes a neutralization reaction ______ [Al2O3 / Al / Al(OH)3]
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.
