The acids arsenious acid, chlorous acid, and selenic acid have to be matched to their respective ionization constant values. Concept Introduction: The acidity strength of acid is governed by the magnitude of acid ionization constant. The most common representation of oxy acid is given by ( OH ) m XO n . Here, the subscript n holds importance because the strength of any oxyacid is dependent upon the value of non-hydrogen bonded O atoms. Oxygen is highly electronegative and hence the electron density in the O − H bond gets concentrated in the vicinity of O . This makes O − H weaker in strength and hence the proton can be readily lost in an acid-base reaction. More stable is the anion formed after the deprotonation from an acid, higher is the acidic strength.

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Chapter 15, Problem 15.100QE

Interpretation Introduction

Interpretation:

The acids arsenious acid, chlorous acid, and selenic acid have to be matched to their respective ionization constant values.

Concept Introduction:

The acidity strength of acid is governed by the magnitude of acid ionization constant. The most common representation of oxy acid is given by (OH)mXOn. Here, the subscript n holds importance because the strength of any oxyacid is dependent upon the value of non-hydrogen bonded O atoms. Oxygen is highly electronegative and hence the electron density in the O−H bond gets concentrated in the vicinity of O. This makes O−H weaker in strength and hence the proton can be readily lost in an acid-base reaction. More stable is the anion formed after the deprotonation from an acid, higher is the acidic strength.

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