Question

Which of the following is not an electron-deficient compound ?

• A. $BeE{t}_2$
• B. $AlM{e}_3$
• C. $B_2{H}_6$
• D. $Si(C{H}_3{)}_4$

Answer 1

The correct option is D $Si(C{H}_3{)}_4$

Tetramethyl silane $Si(C{H}_3{)}_4$ is not an electron-deficient compound whereas others are electron-deficient compounds.

In $Si(C{H}_3{)}_4$, the central silicon atom has $4$ electrons.

$4$ $C$ atoms of $4$ methyl groups hare $4$ electrons. So $Si$ has now $8$ electrons in its valence shell and has completed its octet.

Hence, the correct option is $\text{D}$