$AlCl_3$ on hydrolysis gives:

In the structure of borax,the numbers of boron atoms and $B-O-B$ units,respectively,are

Two elements $X$ and $Y$ combine separately with a highly electropositive metal to form binary compounds,which upon hydrolysis yield borane and silane,respectively. What are $X$ and $Y$?

$BF_3$ on hydrolysis forms:

When borax is dissolved in water, the product formed is

Which statement is correct for $B_2H_6$?