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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
Explain the following:
Dilute nitric acid is generally considered a typical acid but not so in its reaction with metals.
Explain the following:
Concentrated nitric add appears yellow when it is left standing in a glass bottle.
Write a balanced equation for the action of heat on a mixture of copper and concentrated nitric acid.
Name the Following:
Product obtained by heating concentrated nitric acid.
Write the equations involved in Ostwald process.
Complete and balance the following equation :
C + HNO3 → ___________
Give two chemical tests to distinguish between dilute nitric acid and hydrochloric acid.
Give reason for the following:
Commercial concentrated nitric acid is yellow in colour, but when it is dilute with water, it turns colourless.
Give one chemical test for nitric acid.
Write the equation for the reaction of dilute nitric acid with copper.
What is the special feature of the apparatus that is used in the laboratory preparation of nitric acid?
