MCQ
Chlorine water on standing loses its colour and forms
  • A
    $HCl$ only
  • B
    $HCl$ and $HClO_2$
  • $HCl$ and $HOCl$
  • D
    $HOCl$ and $HOCl_2$

Answer

Correct option: C.
$HCl$ and $HOCl$
c
$\begin{align}
   \,\,+I \\ 
  \Rightarrow \,\,Cl{{O}^{-}} \\ 
  B.O.\,=\,1.0 \\ 
  Hyb.\,\,of\,Cl\,:\,s{{p}^{3}} \\ 
\end{align}$                            $\begin{align}
   \,+III\,\,\,\,\, \\ 
  \,\,ClO_{2}^{-} \\ 
 B.O.\,=\,1.5 \\ 
  Hyb.\,\,of\,Cl\,:\,s{{p}^{3}} \\ 
\end{align}$

$\begin{align}
   +V\,\,\,\,\, \\ 
  \,\,ClO_{3}^{-} \\ 
  B.O.\,=\,1.67 \\ 
  Hyb.\,\,of\,Cl\,:\,s{{p}^{3}} \\ 
\end{align}$                            $\begin{align}
   \,+VII\,\,\,\,\, \\ 
  \,\,ClO_{4}^{-} \\ 
  B.O.\,=\,1.75 \\ 
  Hyb.\,\,of\,Cl\,:\,s{{p}^{3}} \\ 
\end{align}$

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