Question

Which pair of atoms has the highest electronegativity difference?
H – S
H – Cl
N – H
O – H
C – H

Answer 1

get a table of electronegativity and check

Answer 2

H
2.5
S
2.1
N
3.0
Cl
3.0
O
3.5
C
2.5

Now calculate difference from these values Simple :)

Answer 3

Thank you

Answer 4

No Problem .

Answer 5

H-Cl and N-H