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Kajal from skv prashant vihar.delhi, asked a question
Subject: Chemistry , asked on 12/10/12

 Fluorine forms only one oxoacid while other halogens form a number of oxoacids. Why?

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Pankaj Singh , Meritnation Expert added an answer, on 30/10/12
399 helpful votes in Chemistry

F is a small atom with very high ionization energy. Due to its high ionization energy it can exist in +1 state only. Even the +1 state is also unstable .While other halogens form a number of oxoacids in which they have +1, +3,+ 4 and +6 oxidation states, F forms only one oxoacid HOF in which it have +1 oxidation state and this is also unstable.

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S Shri Mridula Kumar , added an answer, on 26/10/12
1 helpful votes in Chemistry

As oxygen is hihgest electronegative it combines with oxygen which is next  it and forms 1oxoacid

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