I've seen that we can't say which one is the most electronegative from Cl and N.I've seen that different scales gives different positions for N and Cl
And the one decimal Pauling scale given in our syllabus has N and Cl in the same position of 3.0
The question is whether NCl3 is a molecule having a center atom which has a negative oxidation number
My tutor said:
We can't say consistently which one is the most electronegative of N and Cl. We see it having the same place of 3.0 in Pauling scale. As Cl is a halogen we would say Cl is more electronegative than N.So in NCl3 N has a positive oxidation number and Cl has a negative one.
But according to Wikipedia it has a negative one and Cl has a positive one
Despite the similarities of the Pauling electronegativities of nitrogen and chlorine, this molecule is very polar with negative charges residing on nitrogen. So the nitrogen in NCl3 is often considered to have the -3 oxidation state and the chlorine atoms are considered to be in the +1 oxidation state. Most of its reactivity is consistent with this description.
But I think that I must take what my tutor said.As he knows a lot about the paper we get.He knows what the idea of the professor about this who makes the exam paper.
But here's the hydrolysis of NCl3
. It shows that N is more polar than Cl having a delta(-) residing on N.
And also I need to know whether the reaction of the hydrolysis of NCl3
is Redox or not ?
And also whether the oxidation number of Cl in HOCl is -1 or +1...
If its redox does N reduce from +3 to -3 and cl oxidize from -1 to +1 ?