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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.
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संबंधित प्रश्न
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Fill in the blank with appropriate word/words.
Aqua regia is a mixture of _______ and________
Write the balanced equation for the equation preparation of nitric acid from potassium nitrate.
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Write the equation for the reaction of dilute nitric acid with copper.
Identify the gas evolved when sulphur is treated with concentrated nitric acid.
What happens when
NH3 solution is added to CuSO4 solution drop by drop and then in excess.
