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Question
Rita was given an unknown salt for identification. She prepared a solution of the salt and divided it into two parts.
- To the first part of the salt solution, she added a few drops of ammonium hydroxide and obtained a reddish-brown precipitate.
- To the second part of the salt solution, she added a few drops of silver nitrate solution and obtained a white precipitate.
Name:
- The cation present and
- The anion present in the salt given for identification.
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Solution
- Cation \[\ce{Fe^3+}\] (ferric ion)
When \[\ce{Fe^3+}\] reacts with \[\ce{NH4OH}\] it forms ferric hydroxide.
\[\ce{Fe^{3+} + 3NH4OH -> \underset{(Reddish brown ppt.)}{Fe(OH)3 + 3NH4^+}}\] - Anion: \[\ce{Cl−}\] (Chloride ion)
When \[\ce{Cl−}\] reacts with silver nitrate, it forms a white ppt. of silver chloride.
\[\ce{Cl- + AgNO3 - \underset{Silver chloride}{AgCl + NO^-3}}\]
RELATED QUESTIONS
Name the method used for preparation of the following salt from the list given below:
Zinc ion and Lead ion.
State two relevant observations of the following:
Ammonium hydroxide solution is added to zinc nitrate solution in minimum quantities and then in excess.
State what do you observe when ammonium hydroxide to Iron (III) sulphate solution.
Write the observation for the following:
NaOH is added drop-wise till in excess to a solution of zinc sulphate.
Write the observation for the following:
Excess NH4OH is added to a substance obtained by adding hydrochloric acid in silver nitrate solution.
Write balanced equation copper sulphate solution with ammonium hydroxide solution.
Write a balanced equation:
Copper sulphate solution with ammonium hydroxide solution.
The metal hydroxide which reacts with both acids and alkalis to form salt and water is ______.
Write balanced equation:
Copper sulphate solution with ammoni um hydroxide solution.
Write balanced equation:
Copper sulphate solution with ammonium hydroxide solution.
