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प्रश्न
What happens when
Caustic soda solution is added to Cu(NO3)2 solution and product boiled.
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उत्तर
When Caustic soda solution is added to Cu(NO3)2 solution, the following reaction takes place:
Cu(NO3)2(aq) + 2NaOH(aq) → Cu(OH)2(S) + 2NaNO3(aq)
When we heat it further, the greenish blue copper hydroxide decomposes to form slightly black ppt. of copper oxide.
\[\ce{Cu(OH)2(S) ->[\Delta] CuO(s) + H2O(g)}\]
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संबंधित प्रश्न
Fill in the blanks using the appropriate words given below :
(Sulphur dioxide, nitrogen dioxide, Nitric oxide, Sulphuric acid)
Hot, concentrated nitric acid reacts with sulphur to form ______________.
Name the gas that is produced in the given cases :
Sulphur is oxidized by concentrated nitric acid.
Conc. Nitric acid prepared in laboratory is yellow in colour why? How is this colour removed?
Write a balanced equation and name the products formed when concentrated nitric acid is heated.
Identify the substance underlined:
The dilute acid which is an oxidizing agent.
Write the balanced equation for the following:
Action of concentrated nitric acid on copper.
How would you separate gold from a mixture of gold and copper filling?
Write the equation of the following reaction.
Sulphur can be converted to sulphuric acid using concentrated nitric acid.
Write a balanced equation for following :
Action of conc. Nitric acid on sulphur
The diagram given below is a representation of the Industrial preparation of Nitric acid by Ostwald’s process. With respect to the process answer the following questions:
- Write the temperature and the catalyst required during the catalytic oxidation of ammonia.
- Give balanced chemical equation for the reaction occurring duringthe conversion of nitrogen dioxide to nitric acid.
