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Why is colour of copper sulphate blue?
The colour of Copper sulphate is blue because Copper ions absorb light in all frequencies except blue which is reflected instead.
What is the original colour of fehlings solution?
Fehling's solution is originally blue in color due to the presence of copper ions.
What is the colour of an aqueous sodium bromide solution?
Colourless solution. most coloured solutions contain transition metal ions
Copper can be obtained from solutions containing copper compounds by?
electroplating onto a more reactive metal, such as iron or zinc, which displaces the copper ions from the solution, forming a solid copper coating. This is known as cementation or displacement reaction.
What is the color when fehling a and fehling b are being mixed?
When Fehling A & B are mixed in equal quantities... Fehlings Reagent is formed which is DEEP BLUE in colour Hope that answers your question! :)
What color would copper II nitrate burn?
Copper nitrate is definitely a blue colour, even though copper (II) ions, Cu2+, generally produce blue-green solids and solutions.
Which metal will destroy the blue colour of Copper?
The metal that will destroy the blue colour of Copper ions is any metal above copper in the reactivity series, such as calcium.
Why is colour of copper sulphate blue?
The colour of Copper sulphate is blue because Copper ions absorb light in all frequencies except blue which is reflected instead.
What is the colour of zinc ions mixed with ammonia in phenolphthalein indicator?
The phenolphthalein indicator is pink in basic solutions.
Why the blue colour of copper chloride fades during electrolysis?
The blue color of copper(II) chloride fades during electrolysis because copper ions (Cu²⁺) are reduced to copper atoms (Cu) at the cathode. This causes the copper ions in solution to decrease, resulting in the fading of the blue color.
What colour does copper nitrate compound when you burn it?
Copper nitrate does not have a distinctive color when burned. The flame may likely be blue or green due to the presence of copper ions.
The blue colour of the solution fades during the electrolysis of copper sulfate. Explain why.?
Why does the colour of copper sulphate solution change when an iron nail is dipped in it? When an iron nail is placed in a copper sulphate solution, iron displaces copper from copper sulphate solution forming iron sulphate, which is green in colour. Therefore, the blue colour of copper sulphate solution fades and green colour appears.
What Sample Solution Containing A Metal Ion Has A Green Colour. Since All Ni2 (aq) Solutions Have A Green Colour Does The Sample Solution Contain Ni2 Is The Correct?
No. Copper, iron, and chromium ions, among others, can also exhibit a green color in solution.
When copper chloride breaks down what happens to the colour of the solution?
When copper chloride breaks down, the blue color of the solution fades as copper ions form a precipitate. The resulting solution will become clear or colorless as copper ions are no longer present in the solution and have formed the solid precipitate.
Why blue colour of copper sulphate fades?
The blue color of copper sulfate fades when exposed to light or air due to the oxidation of copper ions into colorless copper oxide. This chemical reaction causes the blue copper ions to lose their color, resulting in the solution appearing colorless over time.
What is the original colour of fehlings solution?
Fehling's solution is originally blue in color due to the presence of copper ions.
Where does the sodium sulphate go when copper sulphate mixes with sodium hydroxide?
Nowhere. I assume you are talking about mixing solutions. The sodium ions and sulpahate ions remain in solution.
