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7. Redox reactions — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry7. Redox reactions1 Mark
MCQ
The oxidation state of iodine in $H_4IO_6^-$ is
  • ✓
    $+7$
  • B
    $-1$
  • C
    $+5$
  • D
    $+1$
✓

Answer

Correct option: A.
$+7$
a
$H_4IO_6^-$

$+4 +x -12 = -1$

$x-8 = -1$

$x = +7$

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