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# What is the oxidation state of Cl in each ion?(a) ClO?(b) ## Problem 53P Chapter 16

Introductory Chemistry | 5th Edition

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Problem 53P

What is the oxidation state of Cl in each ion?

(a)  ClO−

(b) ClO2−

(c) ClO3−

(d) ClO4−

Step-by-Step Solution:
Step 1 of 3

Solution: Here, we are going to assign the oxidation state to chlorine atom in the given polyatomic ions.

Step1:

Oxidation number denotes the oxidation state of an element in a compound ascertained according to a set of rules.

These rules are:

1. In elements, in the free or the uncombined state, each atom bears an oxidation number of zero. Evidently each atom in H2, O2, Cl2, O3, P4, S8, Na, Mg, Al has the oxidation number zero.

2. For ions composed of only one atom, the oxidation number is equal to the charge on the ion. In their compounds all alkali metals have oxidation number of +1, and all alkaline earth metals have an oxidation number of +2. Aluminium is regarded to have an oxidation number of +3 in all its compounds.

3. The oxidation number of oxygen in most compounds is –2.

4. The oxidation number of hydrogen is +1, except when it is bonded to metals in binary compounds (that is compounds containing two elements).

5. In all its compounds, fluorine has an oxidation number of –1. Other halogens (Cl, Br,and I) also have an oxidation number of –1, when they occur as halide ions in their compounds.

6. The algebraic sum of the oxidation number of all the atoms in a compound must be zero. In polyatomic ion, the algebraic sum of all the oxidation numbers of atoms of the ion must equal the charge on the ion.

Step2:

Based upon these rules, let us calculate the oxidation number of chlorine in the given polyatomic ions:

ClO-

Here, the oxidation number of oxygen is -2

Since ClO-  is a polyatomic ion, the algebraic sum of all the...

Step 2 of 3

Step 3 of 3

##### ISBN: 9780321910295

Since the solution to 53P from 16 chapter was answered, more than 315 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 53P from chapter: 16 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM. This full solution covers the following key subjects: clo, oxidation, ion, state. This expansive textbook survival guide covers 19 chapters, and 2045 solutions. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295. The answer to “What is the oxidation state of Cl in each ion?(a) ClO?(b) ClO2?(c) ClO3?(d) ClO4?” is broken down into a number of easy to follow steps, and 14 words. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5.

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