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Since Cl2O3 is a neutral compound, it has an overall charge of 0, which means that the total oxidation number of the compound is 0.

O has an oxidation number of 2- so, 3(2-)= 6-

to have an overall charge of 0, 6+ shpuld be added. Since there are 2 Cl's 6/2=3

Oxidation number of Cl is 3+

Answer : The oxidation state of Cl is, (+3)

Explanation :

Oxidation number : It represent the number of electrons lost or gained by the atoms of an element in a compound.

Oxidation numbers are generally written with sign (+ and -) first and then the magnitude.

The oxidation number of oxygen (O) in compounds is (-2).

The given molecule is, [tex]Cl_2O_3[/tex]

Let the oxidation state of Cl be, 'x'

[tex]2x+3(-2)=0[/tex]

[tex]2x=+6[/tex]

[tex]x=+3[/tex]

Thus, the oxidation state of Cl is, (+3)

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