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The product obtained when copper reacts with sodium hydroxide is

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Important Questions on Analytical Chemistry

EASY
Science>Chemistry>Analytical Chemistry>Colour of Salts and Their Solutions
The colour of the precipitate formed by the reaction copper sulphate with sodium hydroxide is _____.
HARD
Science>Chemistry>Analytical Chemistry>Colour of Salts and Their Solutions
Which of the following pair of cations can be separated by adding NaOH solution ?
EASY
Science>Chemistry>Analytical Chemistry>Colour of Salts and Their Solutions
The product formed by the reaction of Copper sulphate with sodium hydroxide is:
EASY
Science>Chemistry>Analytical Chemistry>Colour of Salts and Their Solutions
The colour of an aqueous solution of copper sulphate is:
EASY
Science>Chemistry>Analytical Chemistry>Colour of Salts and Their Solutions
On reaction of sodium hydroxide with copper ion gives _____ coloured precipitate.
MEDIUM
Science>Chemistry>Analytical Chemistry>Colour of Salts and Their Solutions
When ammonium hydroxide is added to solution B, a pale blue precipitate is formed. This pale blue precipitate dissolves in excess of ammonium hydroxide, to give an inky blue solution. What is the cation present in solution B? What is the probable colour of solution B?
MEDIUM
Science>Chemistry>Analytical Chemistry>Colour of Salts and Their Solutions
What changes occur on heating the mixture of copper sulphate with sodium hydroxide solution.
EASY
Science>Chemistry>Analytical Chemistry>Colour of Salts and Their Solutions
Write a chemical reaction between copper sulphate and sodium hydroxide.
MEDIUM
Science>Chemistry>Analytical Chemistry>Colour of Salts and Their Solutions
A blue coloured solution B on reaction with ammonium hydroxide initially gives a bluish-white precipitate which dissolves in excess of ammonium hydroxide to give solution C. Name the cation in solution B.
MEDIUM
Science>Chemistry>Analytical Chemistry>Colour of Salts and Their Solutions
What do you understand by the precipitation?
MEDIUM
Science>Chemistry>Analytical Chemistry>Colour of Salts and Their Solutions
Write the probable colour of the potassium nitrate salts.
MEDIUM
Science>Chemistry>Analytical Chemistry>Colour of Salts and Their Solutions
Write the probable colour of the aluminium acetate.
MEDIUM
Science>Chemistry>Analytical Chemistry>Colour of Salts and Their Solutions

Name the probable cation present based on the following observation: 

Blue coloured solution.

MEDIUM
Science>Chemistry>Analytical Chemistry>Colour of Salts and Their Solutions
Write the probable colour of the aluminium salts?
EASY
Science>Chemistry>Analytical Chemistry>Colour of Salts and Their Solutions
Write the probable colour of the calcium salts?
MEDIUM
Science>Chemistry>Analytical Chemistry>Colour of Salts and Their Solutions
What do you observe when caustic soda solution is added to the CuSO4 solution, first a little and then in excess. Write balanced equations for these reactions.
HARD
Science>Chemistry>Analytical Chemistry>Colour of Salts and Their Solutions
Distinguish by adding: Sodium hydroxide solution or ammonium hydroxide solution to copper salt solution and ferrous salt solution.