Question

$B{F}_3$ has a tetrahedral structure BECAUSE the octet of central $B$ atom does not complete.

• A. F, T
• B. F,F
• C. T,T
• D. T,F

Answer 1

The correct option is A F, T

The lewis structure of $B{F}_3$ is shown in the figure. It can be clearly seen from the figure that the number of electrons on the outermost shell is 6 and hence the central boron atom does not have a complete octet. Hence $B{F}_3$ acts as a Lewis acid.

The central boron atom in $B{F}_3$ is $s{p}^2$ hybridized and hence it has a trigonal planar structure. Hence Statement 1 is incorrect whereas statement 2 is correct