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
| 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 $[B(OH)_3]$.
$B-S$: $[AlO_2]^{-}$ (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 $[B(OH)_3]$.
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