Question

Correct order of electronegativity of `N,P,C` and `Si` on Pauling scale is:
A. `N gt P gt C gt Si`
B. `C gt Si gt N gt P`
C. `N lt P lt C lt Si`
D. `N gt C gt P gt Si`

Answer 1

Correct Answer - D
Electronegativity of elements generally increases across the period (less increase) and decreases down the group (more decreases).
`Si = 1.8, P = 2.1, C = 2.5, N = 3.0`. So the correct increasing order is `Si lt P lt C tt N`.