Match Column-$I$ with Column-$II$ :

Column-$I$	Column-$II$
$A$. $Bi^{+3} \to (BiO)^{+}$	$P$. Heat
$B$. $[AlO_2]^{-} \to Al(OH)_3$	$Q$. Hydrolysis
$C$. $SiO_4^{-4} \to Si_2O_7^{-6}$	$R$. Acidification
$D$. $(B_4O_7)^{-2} \to [B(OH)_3]$	$S$. Dilution with water

(A-Q, B-S, C-R,P, D-Q,R) $A-Q$: $Bi^{+3}$ undergoes hydrolysis to form bismuthyl ion $(BiO)^{+}$.
$B-S$: $[AlO_2]^{-}$ (aluminate ion) on dilution with water precipitates $Al(OH)_3$.
$C-R, P$: $SiO_4^{-4}$ units condense to form $Si_2O_7^{-6}$ upon acidification or heating.
$D-Q, R$: Borate ions $(B_4O_7)^{-2}$ undergo hydrolysis and acidification to form boric acid $[B(OH)_3]$.