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In an iodometric titration experiment, the oxidation number of sulfur changes from -2 in the thiosulfate ion (S2O32-) to +4 in the sulfate ion (SO42-) as sulfur gains oxygen atoms. This change indicates the transfer of electrons and oxidation of sulfur during the reaction.

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1y ago

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Why the oxidation number of sulphur is plus 6?

Sulphur has 6 valence electrons. So its maximum oxidation number is +6.


What is the valency of sulphur in SO3?

Things are complicated if we use the term valency. It is better to use the term Oxidation state or Oxidation Number. In SO2, the oxidation state of sulphur is +4 and In SO3, the oxidation state of sulphur is +6.


What is the oxidation number of sulphur in sulphur powder?

The oxidation number of sulfur in sulfur powder (S8) is 0. Each sulfur atom in the elemental form has an oxidation number of 0.


What experiment did Antoine lavoisier do?

He burned sulphur in air to get Sulphur oxide


What is the oxidation number of sulphur in the equation of combustion of H2S?

The oxidation number of sulphur in H2S is 2.


Is Iron Sulphide a covalent compound?

Iron sulphide is an ionic compound. The Iron is in a +2 oxidation state and the sulphur is in a -2 oxidation state.


What is Sulphur's oxidation number?

The oxidation number in atomic sulfur is 0. The oxidation number of sulfide ion is -2. With oxygen and other non metals, it makes numerous ions where its oxidation number varies from -2 to +6.


How sulphur dioxide would be formed from sulphur in coal?

Combustion is essentially oxidation, i.e. involving oxygen. sulfur bonds with oxygen as it is freed from the matrix of the coal


What is the oxidation number of Sulfur 3?

generally sulphur shows many numbers. It has 0 in S8 molecules.


What is the Oxidation number of sulphur in h2s2o8?

The oxidation number of sulfur in H2S2O8 is +6. Each oxygen atom has an oxidation number of -2, and each hydrogen atom has an oxidation number of +1. By setting up an equation and solving for sulfur's oxidation number, you will find it to be +6.


Is sulphur reacting with oxygen an oxidation reaction?

Yes, when sulfur reacts with oxygen to form sulfur dioxide (SO2), it is an oxidation reaction because sulfur gains oxygen atoms. The sulfur undergoes oxidation, increasing its oxidation state from 0 to +4.


What is a common oxidation number that is -2?

Generally for group 16 elements, like oxygen, sulphur, selenium.