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Fluorine shows only –1 oxidation state while other halogens show –1, +1, +3, +5 and +7 oxidation states. Explain. - Chemistry

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Short Note

Fluorine shows only –1 oxidation state while other halogens show –1, +1, +3, +5 and +7 oxidation states. Explain.

Explain why fluorine shows only –1 oxidation state while other halogens show higher positive oxidation state?

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Solution

  1. The fluorine atom has no d-orbitals in its valence shell and therefore, cannot expand its octet. Thus, fluorine is the most electronegative exhibit –1 oxidation state only.
  2. Cl, Br, and I exhibit –1, +1, +3, +5, and +7 oxidation states. This is because they are less electronegative than F and possess empty d-orbitals in the valence shell and therefore, can expand the octet.
Concept: Chemical Properties of Elements of Groups 16, 17 and 18
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APPEARS IN

Balbharati Chemistry 12th Standard HSC for Maharashtra State Board
Chapter 7 Elements of Groups 16, 17 and 18
Exercises | Q 3.07 | Page 164
SCERT Maharashtra Question Bank 12th Standard HSC Chemistry Maharashtra State Board 2022
Chapter 7 Elements of Groups 16, 17 and 18
Short Answer Questions (Type-II) | Q 2.1
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