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Question
A given white crystalline salt was tested as follows:
A flame test on the salt gave a persistent golden-yellow colourisation. What conclusions can be drawn for the observation?
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Solution
The flame test of the salt gives persistent golden yellow colourisation which suggests the presence of Na+ ion.
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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