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प्रश्न
Give one test to distinguish between the following pair of chemicals.
Zinc nitrate solution and calcium nitrate solution.
Give a chemical test to distinguish between calcium nitrate soln. and zinc nitrate soln.
उत्तर १
Zinc nitrate and calcium nitrate solutions can be distinguished by reaction with ammonium hydroxide. Zinc forms a white gelatinous ppt. whereas there is no precipitation of calcium hydroxide even with excess ammonium hydroxide.
\[\ce{Zn(NO3)2 + 2NH4OH -> \underset{\text{White gelatinous ppt.}}{Zn(OH)2 v} + 2NH4NO3}\]
उत्तर २
Add a small amount of sodium hydroxide solution to each of the solutions, followed by an excess amount. A fine white precipitate is generated with calcium nitrate, which remains insoluble in excess sodium hydroxide. A gelatinous white precipitate forms with zinc nitrate, which dissolves in excess sodium hydroxide.
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संबंधित प्रश्न
Give a balanced chemical equation for Laboratory preparation of Nitric acid.
Write balanced equations for Action of heat on a mixture of copper and concentrated nitric acid
Give two chemical equations for the following:
Nitric acid acting as the oxidizing agent
How will you prepare the following from nitric acid?
copper nitrate
Why is the temperature maintained at 200°C in the above reaction?
Give reason for the following:
Commercial nitric acid is yellow in colour, but when it is diluted with water, it turns colourless.
Choose the correct answer from the option given below :
Nitric acid on standing develops brownish colour which may be attributed to the presence of :
Fill in the blank with appropriate word/words.
Ammonal is a mixture of ________ and __________
Write the equation for the reaction of dilute nitric acid with copper.
What is the property of nitric acid which allows it to react with copper?
