MCQ
Which of the following is not halide ore ?
  • A
    Cryolite
  • B
    Fluorspar
  • C
    Horn silver
  • Limonite

Answer

Correct option: D.
Limonite
d
The disproportionation reaction is as given below.

$5 I _2 O _4 \rightarrow 4 I _2 O _5+ I _2$

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$X + Y\mathop {\xrightarrow{{NaOH}}}\limits_{5\,^oC} \begin{array}{*{20}{c}}
  {OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
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  {\,\,\,\,\,\,\,\,\,|} \\ 
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