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STD 12 - p -Block elements - ll — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 - p -Block elements - ll4 Marks
MCQ
$KI$ is oxidised into $I_2$ by using the reagent
  • A
    $KMnO_4$ (alkaline solution)
  • ✓
    Ozone (alkaline solution)
  • C
    $CuSO_4$ solution
  • D
    All of these
✓

Answer

Correct option: B.
Ozone (alkaline solution)
b
$H_2S_2O_5$   $\begin{array}{*{20}{c}}
  {\begin{array}{*{20}{c}}
  {O\,\,\,\,\,\,\,\,} \\ 
  {||\,\,\,\,\,\,\,\,} 
\end{array}} \\ 
  {HO - S - \ddot S - OH} \\ 
  {||\,\,\,\,\,\,\,\,||} \\ 
  {O\,\,\,\,\,\,O} 
\end{array}$

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