Question

A valid Lewis structure of which of the following compounds cannot be drawn without violating the octet rule?

• A. $Cl{F}_3$
• B. $PC{l}_3$
• C. $SC{l}_2$
• D. $CC{l}_4$

Answer 1

The correct option is A $Cl{F}_3$

The central atom $\left(Cl\right)$ in $Cl{F}_3$ has 10 electrons in its valence shell and forms an expanded octet and hence violates the octet rule. Whereas, all the other three, i.e., $CC{l}_4,PC{l}_3$ and $SC{l}_2$) have 8 electrons in their valence shell.