# Which of the following does not obey the octet rule?

$\begin{array}{1 1}(a)\;BCl_3\\(b) \;BeH_2\\(c)\; LiCH_3\\(d)\;\text{ All of the above}\end{array}$

All the three compounds does not contain 8 electrons in the valence shell.
Hence (d) is the correct answer.