MCQ
In neutral or alkaline solution, $MnO _{4}^{-}$oxidises thiosulphate to.
- A$S _{2} O _{7}^{2-}$
- B$S _{2} O _{8}^{2-}$
- C$SO _{3}^{2-}$
- ✓$SO _{4}^{2-}$
✓
Answer
Correct option: D.
$SO _{4}^{2-}$
d
$8 MnO _{4}^{-}+3 S _{2} O _{3}^{2-}+ H _{2} O \frac{\text { neutral or }}{\text { alk. solution }} 88 MnO _{2}+6 SO _{4}^{2-}+2 OH ^{-}$
$8 MnO _{4}^{-}+3 S _{2} O _{3}^{2-}+ H _{2} O \frac{\text { neutral or }}{\text { alk. solution }} 88 MnO _{2}+6 SO _{4}^{2-}+2 OH ^{-}$
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{\,\,\,\,\,OH\,\,\,\,\,\,\,OH} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\
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{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\
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$\begin{matrix}
O\,\,\, \\
||\,\,\, \\
C{{H}_{3}}-C-C{{H}_{2}}- \\
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O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
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\end{matrix}\begin{matrix}
O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
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