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8.15. Justify giving reactions that among halogens, fluorine is the best oxidant and among hydrohalic compounds, hydroiodic acid is the best reductant.

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    Answered by

    Vishal Baghel | Contributor-Level 10

    4 months ago

    Fluorine oxidizes chloride ion to chlorine, bromide ion to bromine and iodide ion to iodine respectively.
    F2? + 2Cl− → 2F− + Cl2?
    F2? + 2Br− → 2F− + Br2?
    F2? + 2I− → 2F− + I2?

    Chlorine oxidizes bromide ion to bromine and iodide ion to iodine.
    Cl2? + Br− → 2Cl− + Br2?
    Cl2? + I− → 2Cl− + I2?

    Bromine oxidizes iodide ion to iodine.
    Br2? + I− → 2Br− + I2?

    But bromine and chlorine cannot oxidize fluoride to fluorine. Hence, fluorine is the best oxidizing agent amongst the halogens. The decreasing order of the oxidizing power of halogens is&nb

    ...more

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