Question

Which molecule can't be exist?
A)NCl3 B)OF6 C)ONF3 D)PCl3
​

Answer 1

OF6

Step-by-step explanation:

Oxygen and fluorine have almost the same electronegativity, so oxygen isn't able to donate enough electron density to fluorine to form OF6. Atomic size. There isn't enough room around an oxygen atom for six fluorine atoms.

:-befrank