Question:
Decreasing order of stability of $O_2, O^-_2, O_2^+ $ and ${ O_2^{2-}}$ is :
Decreasing order of stability of $O_2, O^-_2, O_2^+ $ and ${ O_2^{2-}}$ is :
Updated On: May 20, 2024
- ${O_2 > O_2^+ > O_2^{2-} > O_2^- }$
- $O^-_2 > O_2^{2-} > O_2^{+} > O_2 $
- ${O_2^+ > O_2 > O_2^- > O_2^{2-} }$
- ${O_2^{2-} > O_2^- > O_2 > O_2^+ }$
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The Correct Option is C
Solution and Explanation
Given species : ${O_2, O_2{^{-1}} , O_2{^{+1}} , O_2{^{2-}}}$
Total number of electrons
${O_2 -> 16e^{-}}$
${O_{2}^{-1} -> 17e^{-}}$
${O_2^{+1} -> 15e^{-}}$
${O_{2}^{2-} -> 18 e^{-}} $
Total number of electrons
${O_2 -> 16e^{-}}$
${O_{2}^{-1} -> 17e^{-}}$
${O_2^{+1} -> 15e^{-}}$
${O_{2}^{2-} -> 18 e^{-}} $
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Concepts Used:
Chemical Bonding and Molecular Structure
Such a group of atoms is called a molecule. Obviously, there must be some force that holds these constituent atoms together in the molecules. The attractive force which holds various constituents (atoms, ions, etc.) together in different chemical species is called a chemical bond.
Types of Chemical Bonds:
There are 4 types of chemical bonds which are formed by atoms or molecules to yield compounds.
- Ionic Bonds - Ionic bonding is a type of chemical bonding which involves a transfer of electrons from one atom or molecule to another.
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- Hydrogen Bonds - It is a type of polar covalent bonding between oxygen and hydrogen wherein the hydrogen develops a partial positive charge
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- Size of the Atom
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- Number of Lone Pair of Electrons Present
- Bond Angle