Anhydrous $ALCl_3$ is covalent however,when it is dissolved in water hydrared ionic species are formed. This transformation is owing to
the trivalent state of $Al$
the large hydration energy of $Al^{3+}$
the low hydration energy of $Al^{3+}$
the polar nature of water
Boron fluoride exists as $BF_3$ but boron hydride doesn't exist as $BH_3$ . Give reason. In which form, does it exist ? Explain its structure.
$AlC{l_3}$ is
Boron cannot form which one of the following anions ?
Which elements of group $13$ possess both $+1$ and $+3$ oxidation state?
Which of the following statements about the interstitial compounds is incorrect?