Which of the following properties describes the diagooal relalionship between boron and silicon?
$BCl_3$ is not hydrolysed while $SiCl_4$ can be hydrolysed
Both form oxides $B_2O_3$ is ampboteric and $SiO_2$ is acidic
Both metals dissolve in cold and dilute nitric acid
Silicide and boride salts are hydrolysed by water
Which of the following oxides is acidic in nature?
The $+1 -$ oxidation state in group $-13$ and $+2$ oxidation state in group $-14$ becomes more and more stable with increasing atomic number. Explain.
Write chemical reaction of $Al$ with aqueous alkali.
The ionic carbide is
In the metallurgy of aluminium, cryolite is mixed in the molten state because it