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

Bihar BoardEnglish MediumSTD 12 ScienceChemistryThe d & f Block Elements1 Mark
MCQ
Cholrine gas is produced from HCI by the addition of:
  • A
    K2​SO4​
  • B
    KCl
  • C
    KNO3
  • D
    KMnO4​
     
✓

Answer

  1. KMnO4​

Explanation:

KMnO4​ being strong oxidising agent will oxidise CI− ion present in HCl to form chlorine gas.

2KMnO4 ​+ 16HCl → 2KCl + 2MnCl2 ​+ 8H2​O + 5Cl2​

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