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what is the oxidation state of C and N in HNC and C in Al(CNO) 3 ?

what is the oxidation state of C and N in HNC and C in Al(CNO)3 ?

Grade:11

2 Answers

Vikas TU
14149 Points
7 years ago
HNC ---------- 
1+ x-5 = 0 
x = 4 
O.N,. of C = +4 
ON. of N = -5
 
The more electronegative element is assigned the negative oxidation number. 

CNO1- 
O = -2 
N = -3 (more electronegative than C) 
C = +4 
The sum of these oxidation numbers is -1, the same as the overall charge on the ion.
Akshat Mishra
17 Points
6 years ago
HNC
H= +1 (because less electro negative)
N= -3 (because N is more electro negative than C and H. Therefore, -2 from C and -1 from H)
C= +2 ( because C is less electro negative than N. Therefore,  +2 from N)
Since, co-ordinate bond is present between C and N 
and covalent bond between N and H

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