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The d & f Block Elements — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryThe d & f Block Elements1 Mark
MCQ
Cholrine gas is produced from $\text{HCI}$ by the addition of:
  • A
    $ \mathrm{K}_2 \mathrm{SO}_4 $
  • B
    $ \mathrm{KCl} $
  • C
    $ \mathrm{KNO}_3 $
  • ✓
    $ \mathrm{KMnO}_4 $
✓

Answer

Correct option: D.
$ \mathrm{KMnO}_4 $
$ \mathrm{KMnO}_4 $ being strong oxidising agent will oxidise $CI^-$ ion present in $\text{HCl}$ to form chlorine gas.
$2 \mathrm{KMnO}_4+16 \mathrm{HCl} \rightarrow 2 \mathrm{KCl}+2 \mathrm{MnCl}_2+8 \mathrm{H}_2 \mathrm{O}+5 \mathrm{Cl}_2$

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