$N{a_2}{B_4}{O_7}.10{H_2}O\xrightarrow{{Heat}}X + NaB{O_2} + {H_2}O,X + C{r_2}{O_3}\xrightarrow{{Heat}}\mathop Y\limits_{\left( {Green\,coloured} \right)} $ $X$ and $Y$ are
$Na_3BO_3$ and $Cr(BO_2)_3$
$Na_2B_4O_7$ and $Cr(BO_2)_3$
$B_2O_3$ and $Cr(BO_2)_3$
$B_2O_3$ and $CrBO_3$
Describe the shapes of $BF $$_{3}$ and $BH _{4}^{-}$. Assign the hybridisation of boron in these species.
Anhydrous $ALCl_3$ is covalent however,when it is dissolved in water hydrared ionic species are formed. This transformation is owing to
Draw structure of $Al_2Cl_6$ and give uses of $AlCl_3$.
Explain structures of diborane and boric acid.
Taking stability as the factor, which one of the following represents correct relationship?