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Question
Name a solution that will separate the component of the following mixture: Zn(OH)2 from Pb(OH)2
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Solution
Zn(OH)2 from Pb(OH)2 :
Ammonium hydroxide (NH4OH) solution can separate
Zn(OH)2 from Pb(OH)2 as Zn(OH)2 precipitates are dissolved in excess of NH4OH solution while Pb(OH)2 precipitates are insoluble in excess of NH4OH solution.
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RELATED QUESTIONS
Match the salts given in Column I with their method of preparation given in Column II.
| Column I | Column II | ||
| 1 | Pb(NO3)2 from PbO | A | Simple displacement |
| 2 | MgCl2 from Mg | B | Titration |
| 3 | FeCl3 from Fe | C | Neutralization |
| 4 | NaNO3 from NaOH | D | Precipitation |
| 5 | ZnCO3 from ZnSO4 | E | Combination |
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The questions (i) to (v) refer to the following salt solutions listed A to F :
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Write balanced equation for a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.
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Write balanced equation for a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.
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