Question

Total no. of $2c-2e^{}$ bond and $3c-2e^{}$ bond in $Al(B{H}_4{)}_3$ are respectively :

• A. $6,12$
• B. $6,6$
• C. $12,12$
• D. $12,6$

Answer 1

Answer: (B)

$6,6$

Total no. of $2c-2e^{}$ bond and $3c-2e^{}$ bond in $Al(B{H}_4{)}_3$ are respectively $6,6$.
$2c-2e$ bond means a pair of electrons is shared between $2$ atoms.
$3c-2e$ bonds means a pair of electrons is shared between $3$ atoms.