Question:
The colour of \(Mg(OH)_2\) precipitate formed when it is precipitated in the presence of magneson reagent is
The colour of \(Mg(OH)_2\) precipitate formed when it is precipitated in the presence of magneson reagent is
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Magneson reagent is commonly used for qualitative detection of magnesium ions due to the formation of a blue colored precipitate.
Updated On: Jun 25, 2026
- Green
- Yellow
- Brown
- Blue
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The Correct Option is D
Solution and Explanation
Step 1: Understand the role of magneson reagent.
Magneson reagent is used as a qualitative reagent for detecting magnesium ions: \[ Mg^{2+} \]
Step 2: Formation of precipitate.
When magnesium ions react in alkaline medium, magnesium hydroxide precipitate is formed: \[ Mg^{2+}+2OH^-\rightarrow Mg(OH)_2 \] In the presence of magneson reagent, this precipitate develops a characteristic blue color.
Step 3: Identify the color.
Thus, the precipitate formed is: Blue
Step 4: Final conclusion.
Hence, the color of \(Mg(OH)_2\) precipitate in presence of magneson reagent is \[ \boxed{\text{Blue}} \]
Magneson reagent is used as a qualitative reagent for detecting magnesium ions: \[ Mg^{2+} \]
Step 2: Formation of precipitate.
When magnesium ions react in alkaline medium, magnesium hydroxide precipitate is formed: \[ Mg^{2+}+2OH^-\rightarrow Mg(OH)_2 \] In the presence of magneson reagent, this precipitate develops a characteristic blue color.
Step 3: Identify the color.
Thus, the precipitate formed is: Blue
Step 4: Final conclusion.
Hence, the color of \(Mg(OH)_2\) precipitate in presence of magneson reagent is \[ \boxed{\text{Blue}} \]
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