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प्रश्न
Answer the following in one sentence:
Why is it necessary to add H2SO4 while preparing the solution of CuSO4?
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उत्तर
- The aqueous solution of CuSO4 is turbid due to the formation of sparingly soluble Cu(OH)2 by hydrolysis as shown below:
\[\ce{Cu^2+_{ (aq)} + 4H2O_{(l)} ⇌ Cu(OH)_{2(aq)} + 2H3O^+_{ (aq)}}\] - If H2SO4, that is H3O+ ions are added, the hydrolytic equilibrium shifts to the left. Turbidity of Cu(OH)2 dissolves to give a clear solution. Hence, it is necessary to add H2SO4 while preparing the solution of CuSO4.
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संबंधित प्रश्न
Answer the following in brief :
The aqueous solution of sodium carbonate is alkaline whereas the aqueous solution of ammonium chloride is acidic. Explain.
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NH4CN is a salt of ____________.
Which of the following salts do not undergo hydrolysis?
i. CH3COONa
ii. CuSO4
iii. NaCl
iv. NH4NO3
v. K2SO4
Find the CORRECT match.
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Why is it necessary to add H2SO4 while preparing the solution of CuSO4?
Answer the following in one sentence :
Why is it necessary to add H2 SO4 while preparing the solution of CuSO4?
Why is it necessary to add H2SO4 while preparing the solution of CuSO4?
Answer the following in one sentence:
Why is it necessary to add H2SO4 while preparing the solution of CuSO4?
Write hydrolysis reaction of iodine trichloride.
Define hydrolysis.
Which one of the following salts does not hydrolyse in water?
A salt of strong acid and strong base does not undergo hydrolysis. Explain.
Give an example of a salt of weak acid and weak base.
Why is it necessary to add H2SO4 while preparing the solution of CuSO4?
Why is it necessary to add \[\ce{H2SO4}\] while preparing the solution of \[\ce{CuSO4}\]?
Why is it necessary to add \[\ce{H2SO4}\] while preparing the solution of \[\ce{CuSO4}\]?
Answer the following in one sentence:
Why is it necessary to add H2SO4 while preparing the solution of CuSO4?
