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Question
Three test tubes contain calcium nitrate solution, zinc nitrate solution and lead nitrate solution.Describe the effect of Adding ammonium hydroxide to each portion in turn till it is in excess.
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Solution
Ammonium Hydroxide :
| Small amount | In excess | |
| Calcium nitrate | No visible reaction | No change |
| Zinc nitrate | White precipitate | Soluble |
| Lead nitrate | White precipitate | Soluble |
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