The weakest Lewis acid is
$BF_3$
$BCl_3$
$BBr_3$
$BI_3$
Which of the following compounds is formed by addition of mineral acid to an aqueous solution of borax ?
Anhydrous $ALCl_3$ is covalent however,when it is dissolved in water hydrared ionic species are formed. This transformation is owing to
Moissan boron is
The structure of diborane $({B_2}{H_6})$ contains
The species, having bond angles of $120^o $ is