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Mn+2 ions in presence of S2– gives a precipitate of following color?
  • a)
    Blue
  • b)
    Pink
  • c)
    Gelatin White
  • d)
    Yellow
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Mn+2 ions in presence of S2– gives a precipitate of following co...
Understanding Mn+2 Ions and Their Reactions
When manganese ions (Mn+2) are mixed with sulfide ions (S2–), a specific reaction occurs, resulting in the formation of manganese sulfide. The precipitate formed exhibits a characteristic color.
Color of the Precipitate
- The precipitate formed in the presence of Mn+2 ions and S2– is typically pink.
- This pink color is attributed to the oxidation state of manganese in the precipitate.
Details of the Reaction
- Manganese(II) ions (Mn+2) are known to react with sulfide ions (S2–) to form manganese sulfide (MnS).
- The formation of MnS is significant as it is a stable compound and is relatively insoluble in water, resulting in a visible precipitate.
Why Pink?
- The pink color of the precipitate is due to the specific electronic transitions within the manganese ion.
- Manganese in its +2 oxidation state has unpaired d-electrons, which can absorb certain wavelengths of light, leading to the pink appearance.
Conclusion
- Thus, when Mn+2 ions are reacted with S2– ions, the resulting precipitate is indeed pink, confirming option 'B' as the correct answer.
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Mn+2 ions in presence of S2– gives a precipitate of following color?a)Blueb)Pinkc)Gelatin Whited)YellowCorrect answer is option 'B'. Can you explain this answer?
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