MCQ
Identify the INCORRECT statement.
  • A
    The acid strength of the halogen oxoacids increases with the increasing oxidation state of halogen.
  • B
    Oxygen has two allotropes $O _2$ and $O _3$ (ozone).
  • C
    All hydrides except $H _2 O$ possess reducing property which increases in the order $H _2 S< H _2 Se < H _2 Te$.
  • Thermal stability of hydrogen halides increases in the order $HF < HCl < HBr < HI$.

Answer

Correct option: D.
Thermal stability of hydrogen halides increases in the order $HF < HCl < HBr < HI$.
D

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