Question

k2cr2o7 me sirf cr ka oxidation state kyu nikalta hai ?​

Answer 1

Answer:

Explanation:

Oxidation state of K:- +1

Oxidation state of O:- -2

Let the oxidation state of Cr be :- x

And we know that net charge on a compound is 0. Therefore the equation will be :-

1×2+2×x+7×(-2)=0

2+2x-14=0

2x-12=0

2x=12

Therefore, x=12/2=6

So in K2Cr2O7 , the oxidation number of Cr is +6.

Answer 2

Answer:

Kyunki Cr ke variable oxidation states hote hai; O aur K ke oxidation states GENERALLY badalte nahi hai.

Explanation: