Ozonolysis of \(ClO_2\) produces oxide of chlorine. The average oxidation state of chlorine in this oxide is ____.
Correct Answer: 6
Solution and Explanation
We are given the following reaction:
\( 2 \, \text{ClO}_2 + 2 \, \text{O}_3 \rightarrow \text{Cl}_2\text{O}_6 + 2 \, \text{O}_2 \)
This reaction shows chlorine dioxide (ClO2) reacting with ozone (O3) to give dichlorine hexoxide (Cl2O6) and oxygen gas (O2).
Step 2: Paramagnetism of ClO2
ClO2 contains an odd electron, which makes it paramagnetic. This is because it has an unpaired electron in its molecular orbitals, which causes it to be attracted to magnetic fields.
Step 3: Oxidation States of Chlorine in ClO2 and Cl2O6
To determine the oxidation state of chlorine in the given compounds, we need to consider the oxidation state of oxygen (which is typically -2 in most compounds) and apply the rules for calculating oxidation states.
- In ClO2, oxygen has an oxidation state of -2. Since the compound is neutral overall, we can use the equation to determine the oxidation state of chlorine: \[ x + 2(-2) = 0 \quad \Rightarrow \quad x - 4 = 0 \quad \Rightarrow \quad x = +4 \] So, the oxidation state of chlorine in ClO2 is +4.
- In Cl2O6, there are six oxygens with an oxidation state of -2 each. The total oxidation state for oxygen is: \[ 6(-2) = -12 \] Since the compound is neutral, we can use the following equation to find the oxidation state of chlorine: \[ 2x + (-12) = 0 \quad \Rightarrow \quad 2x = 12 \quad \Rightarrow \quad x = +6 \] Therefore, the oxidation state of chlorine in Cl2O6 is +6.
Step 4: Conclusion
From the above calculations, we can conclude that in Cl2O6, the average oxidation state of chlorine is +6.
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Concepts Used:
P-Block Elements
- P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
- P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.
P block elements consist of:
- Group 13 Elements: Boron family
- Group 14 Elements: Carbon family
- Group 15 Elements: Nitrogen family
- Group 16 Elements: Oxygen family
- Group 17 Elements: Fluorine family
- Group 18 Elements: Neon family