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प्रश्न
Identify the cations in the following case:
NaOH Solution, when added to Solution (C), gives white ppt which is insoluble in excess
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उत्तर
Ca2+ ion
Ca(NO3)2 + 2NaOH 
Ca(OH)2 + 2NaNO3
(White ppt.sparingly soluble)
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संबंधित 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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What do you observe when ammonium hydroxide is added to the aqueous solution of Zinc nitrate? Write a balanced equation for this.
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
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Distinguish by a chemical test, sulphuric acid from nitric acid and hydrochloric acid.
State your observation when lead nitrate solution and sodium chloride solution are mixed.
