Linked Questions

16
votes
3answers
29k views

Oxidation state of the sulfur atoms in the thiosulfate Ion

What are the oxidation states of the two inequivalent sulfur atoms of the $\ce{S2O3^{2-}}$ molecule? For all I know is that Lewis Structure does matter in most of the cases.
20
votes
4answers
16k views

What should be the oxidation state of oxygen in HOF (hypofluorous acid)?

What should be the oxidation state of oxygen in $\ce{HOF}$ (hypofluorous acid)? Sources on the internet have confused me. Most state its oxidation state to be 0, while the others state that it is -2 (...
10
votes
3answers
2k views

Oxidation state of fluorine in HOF

What should be the oxidation state of $\ce{F}$ in $\ce{HOF}$. As fluorine is the most electronegative element in the periodic table, it should be $-1$. But when I googled it, I found that many ...
17
votes
1answer
1k views

An introduction to “oxidation state”/“oxidation number”

I just can't get my head around oxidation states. They're really confusing! Why do I need to assign a number to some element? What are oxidation states? How and why should we assign oxidation states? ...
11
votes
2answers
4k views

Does fluorine in FNO3 have +1 oxidation number?

According to my textbook and also Wikipedia, fluorine nitrate is a compound which can be created (though it is unstable). Also my textbook says that fluorine has a $+1$ oxidation state. But how is $+1$...
4
votes
2answers
20k views

Why is gaining hydrogen called reduction when gaining electrons is called reduction? Aren't they opposites

Reduction is gain of hydrogen (Source) Reduction is gain of electrons (Source) Is it because a hydrogen has an electron so gaining hydrogen is technically gaining electrons? But that doesn't ...
0
votes
3answers
4k views

Can redox reactions involve only non metals?

When non metal react they form molecule, and whether the bond is polar or not, the elements in the molecular compound will not have charges what so ever, because they are not ionic. But can non metals ...
5
votes
1answer
773 views

Finding the Oxidation number

I have got the homework to balance the following redox reaction. $\ce{Cr(OH)3- + HO2- -> Cr2O7^{-2} + OH- }$(Basic medium) To balance this reaction first thing we need to do is to find the ...
1
vote
1answer
412 views

Find oxidation number of a metal in a compound

Calculate the oxidation number of $\ce{Fe}$ in $\ce{Fe2O3}$. Alright. So we have a metal and an non metal. This means that iron will lose electrons and give them to oxygen. So it will be a positive ...
0
votes
0answers
979 views

Why would phosphorus pentoxide be called 'phosphorus(v) oxide'?

There's a question in the chemistry textbook I use with my GCSE class which asks pupils to identify which of various compounds feature ionic bonding. One of the compounds is phosphorus(V) oxide, which ...
-1
votes
2answers
62 views

Why is it a reduction from a ketone to an alcohol? [closed]

Why is it a reduction from a ketone to an alcohol (using $\ce{LiAlH4}$)? I'm not able to figure out the oxidation state of carbon.