Sample A (blue) + heat → Residue B (black) +Gas C(acidic) + Gas D [2] (reddish brown) ( neutral) Identify A, B, C and D
Answers
Explanation:
Cu
2+
ion on strongly heating leaves a black residue.
Copper sulfate is normally found in the form of blue crystals, copper (II) sulfate pentahydrate. When you heat copper sulfate pentahydrate it turns white as the water which is driven off by the heat. The white solid remaining is anhydrous copper sulfate. On further heating, it changes to black color. If you add water to the anhydrous copper sulfate an exothermic reaction occurs, you can feel the test-tube getting hot, as the blue copper sulfate pentahydrate is re-formed.
Answer:
Sample A (blue) + heat → Residue B (black) +Gas C(acidic) + Gas D [2] (reddish brown) ( neutral) Identify A, B, C and D
Nitrates of monovalent alkali metals on heating do not give NO2 on heating. Metals like sodium and potassium. and release oxygen gas. In this reaction, there is no release of nitrogen gas only oxygen gets released.Nov 11, 2017
Name a nitrate of metal which on heating does not give nitrogen ...brainly.in › question
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Which metal nitrate does not give no2 on heating?
Among monovalent metals, the nitrate of silver decomposes to give NO2, along with the free metal and oxygen. The monovalent alkali metals like sodium and potassium do not give NO2 or any other oxide of nitrogen on decomposition. Ammonium nitrate yields nitrous oxide (N2O) on heating.
Explanation: