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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.
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
Name two colourless metal ions.
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Choose the correct answer from the options given below :
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Choose the correct answer:
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Write the equation for the following reaction :
Zinc oxide is treated with sodium hydroxide solution.
Why the alkali is added drop by drop to the salt solution?
Write balanced equation for a metal that evolves a gas which burns with a pop sound when boiled with alkali solution.
