Q36 / 92 · NTA Abhyas (NEET) 2020 · Chemistry · Redox Reactions

If IO4- is converted into I2 in acid medium, calculate the equivalent mass of IO4-.

  • A
    M/14
  • Correct answer
    B
    M/7
  • C
    M/5
  • D
    M/3

Solution

Equivalent mass =Molecular weight Change in oxidation number per mole
Suppose molecular weight is M
Oxidation number of I2 in IO4- in Acidic medium i.e., I×(-8)+1e-=+7
So eq. wt. =M/7 .

Hence, the correct answer is option: 'B'.

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