In which of the following, a salt of the type $KMO_2$ is obtained?
$B_2H_6 + KOH \,(aq)\, \rightarrow$
$Al + KOH\, (aq)\, \rightarrow$
Both
None
Which is true about $H_3BO_3$
Explain why the following compounds behave as Lewis acids ?
$(A)$ $BCl_3$ $(B)$ $AlCl_3$
Give uses of $Al$ and its compound.
Write reactions to justify amphoteric nature of aluminium.
The number of neutrons present in the more abundant isotope of boron is ' $\mathrm{x}$ '. Amorphous boron upon heating with air forms a product, in which the oxidation state of boron is ' $y$ '. The value of $x+y$ is ...