Question:
$HClO_4$ is a stronger acid than $HClO_3$.
Oxidation state of chlorine in $HClO_4$ is $+7$ and in $HClO_3$ is $+5$.
$HClO_4$ is a stronger acid than $HClO_3$.
Oxidation state of chlorine in $HClO_4$ is $+7$ and in $HClO_3$ is $+5$.
Updated On: Jul 28, 2022
- If both assertion and reason are true and reason is the correct explanation of assertion
- If both assertion and reason are true but reason is not the correct explanation of assertion
- If assertion is true but reason is false
- If both assertion and reason are false
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The Correct Option is B
Solution and Explanation
$HClO _{4}$ is stronger than $HClO _{3}$. The oxidation number of $Cl$ in $HClO _{4}$ is $+7$ and in $HClO _{3}$ is $+5$. The acid strength of oxyacid of the same halogen increases with the increase in oxidation number of halogen.
$HOCl < HClO _{2}< HClO _{3}< HClO _{4}$
It can also be explained on the basis of presence of oxygen atoms. The acidity of acid increase with increase in number of oxygen atoms as the electronegative (powerful electron withdrawing group) weakens the - $OH$ bond and thus proton can be donated easily.
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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