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Question

State two relevant observations for the reaction:
Ammonium hydroxide solution is added to copper (II) nitrate solution in small quantities and then in excess.

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Answer

Two observations are:

  1. A bluish white ppt. is formed when small amount of ammonium hydroxide is added.
  2. This precipitate turns deep blue when excess of ammonium hydroxide solution is added.

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💡 Some Related Questions

Action of Ammonium Hydroxide – on solutions of salts

Magnesium chloride MgCl2 + NH4OH ⟶ ____ + ____ ↓
Iron [II] sulphate FeSO4 + NH4OH ⟶ ____ + ____ ↓
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Lead nitrate Pb(NO3)2 + NH4OH ⟶ ____ + ____↓

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