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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 solution and zinc nitrate solution.
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उत्तर १
Zinc nitrate and calcium nitrate solutions can be distinguished by reaction with ammonium hydroxide. Zinc forms a white gelatinous ppt. In contrast, calcium hydroxide does not precipitate even when excess ammonium hydroxide is present.
\[\ce{Zn(NO3)2 + 2NH4OH -> \underset{White gelatinous ppt.}{Zn(OH)2 v} + 2NH4NO3}\]
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. When zinc nitrate dissolves in too much sodium hydroxide, a gelatinous white precipitate is produced.
संबंधित प्रश्न
Name the products formed when carbon and conc. nitric acid is heated.
Name a metal nitrate which on heating is changed into metal oxide.
Name the Following:
Salt used in the laboratory to prepare nitric acid
Name the catalyst used in Ostwald process.
Describe the Ostwald's process for the manufacture of nitric acid with labeled diagram.
Brown ring disappear if the test tube is disturbed.
Give reason for the following:
Commercial nitric acid is yellow in colour, but when it is diluted with water, it turns colourless.
Give reason for the following:
Concentrated nitric acid is a stronger oxidizing agent.
The first step in the manufacture of nitric acid is the catalytic oxidation of ammonia. What is the name of the catalyst?
Write a balanced equation for following :
Reaction of ammonia with nitric acid
