Chemistry 2e · 18.11 Occurrence, Preparation, and Properties of Halogens

Occurrence, Preparation, and Properties of Halogens: practice problems

5 problems from the book, with its answers. Check your working, or have any of them explained to you on the whiteboard.

1. Exercises 101

   Why is SnCl₄ not classified as a salt?

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2. Exercises 103

   Which is the stronger acid, HClO₃ or HBrO₃? Why?

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3. Exercises 105

   Predict the molecular geometries and draw Lewis structures for each of the following. You may wish to review the chapter on chemical bonding and molecular geometry.

   (a) IF₅

   (b) ${\text{I}}_3{}^{-}$

   (c) PCl₅

   (d) SeF₄

   (e) ClF₃

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4. Exercises 107

   Name each of the following compounds:

   (a) BrF₃

   (b) NaBrO₃

   (c) PBr₅

   (d) NaClO₄

   (e) KClO

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5. Exercises 109

   What is the oxidation state of the halogen in each of the following?

   (a) H₅IO₆

   (b) ${\text{IO}}_4{}^{-}$

   (c) ClO₂

   (d) ICl₃

   (e) F₂

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