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In Cr2O72- chromium (Cr) has an oxidation number of 6+ while oxygen has an oxidation number of 2-.

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Q: What is the oxidation number of Cr2O72?
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What is the oxidation number of Cr in Cr2O72 is?

+6 for Cr, -2 for each O in Cr2O72-


Why the oxidation number of Cr2O72- is 6?

It is true for chromium. But O shows 2asthe oxidation number.


What is the oxidation number for Cr in Cr2O3?

+6 for Cr, -2 for each O in Cr2O72-oxidation number for oxygen is -2 so 7 of them makes -14 in total but the compound has an overall charge of 2- so therefore +12 is required. As there are two chromium then the oxidation number for each one is +6


What is oxidation number of chromium in Cr2O7?

The oxidation number of chromium in Cr2O7 is +7. The oxidation number of oxygen is -2, so 7 O atoms times -2 = -14. In order to balance the -14 on the oxygen atom, each chromium atom must have an oxidation number of +7, because 2 Cr atoms times +7 equals +14.


What is the oxidation number of IF?

oxidation number of I is -1. oxidation number of F is +1.


What is the oxidation number of HClO?

Hydrogen's oxidation number is +1.Chlorin's oxidation number is +1.Oxygen's oxidation number is -2.


When a dichromate ion acts as an oxidizing agent chromium's oxidation state drops from?

The dichromate ion is Cr2O72- and the chromium is in oxidation state 6. When it acts as an oxidizing agent it usually reduces from 6 to 3.2Cr2O72- -----> 4Cr3+ + 7O2 + 16e-See the related link for more information.


What is the oxidation number of zns?

Zn has oxidation number +2; S has oxidation number -2


What is the Oxidation number of sand?

Silicon's oxidation number is +4.Oxygen's oxidation number is -2


What is the oxidation number of H2O2?

The oxidation number for H is +1, and the oxidation number for O is -1.


What is the oxidation number for sand?

Oxidation number of Si is +4.Oxidation number of O is -2.


What is the oxidation number of H2CO2?

Carbon atoms oxidation number is +2.Hydrogen's oxidation number is +1.Oxygen's oxidation number is -2.