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-2 for each O

+6 for Cr

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What is the oxidation number of CrO42?

The oxidation number of chromium (Cr) in CrO4^2- is +6. Since each oxygen atom has an oxidation number of -2, and the overall charge of the polyatomic ion is -2, the oxidation number of chromium can be determined by solving the equation: (oxidation number of Cr) + 4(-2) = -2.


What is the oxidation number of Mn in MnCrO42?

In Mn(CrO4)2 manganese has +4 oxidationnumber, the ioncharge of chromate ion (CrO42-) is -2.


What is the name of the CrO4 ions?

If this compound existed it would be called chromium heptoxide. This would imply an impossibly high oxidation number for chromium. Chromium forms a number of oxides including Cr2O3 and a chromium(VI) oxide, chromium oxide peroxide.


The CrO42- ion was involved in a chemical reaction during which it was transformed into Cr3 plus ions. What is the change in oxidation number of the chromium atom?

2CrO2 -1 (aq) + 2H2O (l) + 6ClO -1 (aq) --------> 2CrO4 -2 (aq) + 3Cl2 (g) + 4OH -1 (aq)Cr increases from 3+ to 6+ in oxidation state.+3


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.


What is the oxidation number of acetate?

The oxidation number of acetate (CH3COO-) is -1. The carbon atom has an oxidation number of +3, each hydrogen atom has an oxidation number of +1, and the oxygen atoms have an oxidation number of -2.


Why Cro42- is a strong oxidising agent but MnO42- not?

Cro42- (chromate ion) is a strong oxidizing agent because it can readily accept electrons, undergoing reduction to Cr3+ in acidic conditions. Its high oxidation state and the stability of the resulting lower oxidation state make it effective in oxidizing other substances. In contrast, MnO42- (manganate ion) is a weaker oxidizing agent because, while it can also accept electrons, its reduction to Mn2+ is less favorable compared to the reduction of chromate. Additionally, the presence of additional oxidation states for manganese allows for more stable intermediates, diminishing its overall oxidizing strength.


What is the oxidation number of H2CO2?

The oxidation number of each hydrogen in H2CO2 is +1, while the oxidation number of each carbon in CO2 is +4. This is because hydrogen usually has an oxidation number of +1, and oxygen usually has an oxidation number of -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 nitrosyl?

The oxidation number of nitrosyl (NO) is +1. Nitrogen typically has an oxidation number of -3, and oxygen typically has an oxidation number of -2. In NO, nitrogen has a -3 oxidation number and oxygen has a -2 oxidation number, leading to an overall oxidation number of +1 for the nitrosyl ion.


What is the oxidation number for Nb in NbO2?

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


Rank these items in order of increasing oxidation number for manganese MnCl2 Mn KMnO4 Mno2 lowest oxidation number?

MnCl2: oxidation number +2MnO2: oxidation number +4KMnO4: oxidation number +7