HBr and HIcan reduce  H2SO4,    HCl can reduce KMnO4 and  HF can reduce 

 

  1. A

    H2SO4

  2. B

    KMnO4

  3. C

    K2Cr2O7

  4. D

    None of the above

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    Solution:

    Fluorine being most electronegative it cannot  be oxidised by any other substance except by electrolysis. F  oxidised to F2 only by electrolysis. 

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