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p -Block elements - ll — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistryp -Block elements - ll1 Mark
MCQ
Which of the following has greatest reducing power
  • ✓
    $HI$
  • B
    $HBr$
  • C
    $HCl$
  • D
    $HF$
✓

Answer

Correct option: A.
$HI$
a
(a)$B{r_2} + 2KI\, \to \,{I_2} + 2KBr$ is the strongest reducing agent among halogen acids because of lowest bond dissociation energy.

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