Question

What is the oxidation state of $\mathrm{Cl}$ in $\mathrm{HClO}_{4} ?$

    What is the oxidation state of $\mathrm{Cl}$ in $\mathrm{HClO}_{4} ?$

Inorganic Chemistry for JEE ADVANCED

Inorganic Chemistry for JEE ADVANCED

K. S. Verma 3rd Edition

Chapter 4, Problem 9

Instant Answer

Solved by Expert Hunza Gilgit

02/20/2022

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Step 1: The oxidation state of hydrogen (H) is +1 and the oxidation state of oxygen (O) is -2. Show more…

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What is the oxidation state of $\mathrm{Cl}$ in $\mathrm{HClO}_{4} ?$

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Key Concepts

Oxidation State Concept

An oxidation state (or oxidation number) is a formalism used to indicate the degree of oxidation of an atom in a chemical compound. It is a hypothetical charge that an atom would have if all bonds were considered to be completely ionic, thus allowing chemists to track electron transfer in redox reactions.

Rules for Assigning Oxidation Numbers

These rules provide a systematic method for determining the oxidation state of each element in a compound. Common rules include assigning an oxidation state of -2 to oxygen in most compounds and +1 to hydrogen when bonded to non-metals, with the sum of oxidation numbers in a neutral compound equaling zero.

Application in Oxoacids

Oxoacids are acids that contain oxygen, hydrogen, and another element, and determining the oxidation state of the central atom involves applying the oxidation number rules. By recognizing that hydrogen typically contributes +1 and oxygen -2, one can calculate the oxidation state of the central atom through the requirement that the overall charge of the molecule is balanced.

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