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प्रश्न
Identify the cations in the following case :
NH4OH Solution, when added to the Solution (B), gives white ppt which does not dissolve in excess.
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उत्तर
Pb2+ ion
Pb(NO3)2 + 2NH4OH 
Pb(OH)2 + 2NH4NO3
(chalkywhiteppt. insoluble in excess)
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संबंधित प्रश्न
Identify the cations in the following case:
NaOH Solution, when added to Solution (C), gives white ppt which is insoluble in excess
Select from the list the gas that matches the description given in case
[ammonia, ethane, hydrogen chloride, hydrogen sulfide, ethyne]
This gas produces dense white fumes with ammonia gas.
Distinguish between the given pair of compounds using the test given within brackets:
Iron (II) sulphate and iron (III) sulphate (using ammonium hydroxide)
State your observation When calcium hydroxide is heated with ammonium chloride crystals.
Name the other ion formed when ammonia dissolves in water.
Why is ammonium hydroxide used in qualitative analysis? Give two equations to justify your answer.
When ammonium hydroxide is added to solution B, a pale blue precipitate is formed. This pale blue precipitate dissolves in excess ammonium hydroxide, giving an inky blue solution. What is the cation [positive ion] present in solution B? what is the probable colour of solution B?
Q. 24
Write a balanced chemical equation for reaction of ammonia with heated copper oxide
Explain with a diagram the preparation of aqueous ammonia.
