(a) Classify followingoxides as neutral, acidic, basic oramphoteric CO, B_(2)O_(3), SiO_(2), CO_(2), Al_(2)O_(3), PbO_(2), Tl_(2)O_(3) (b) Write suitablechemcial equationsto show their nature.

(a) Classify followingoxides as neutral, acidic, basic oramphoteric C

1.	(a) Classify followingoxides as neutral, acidic, basic oramphoteric CO, B_(2)O_(3), SiO_(2), CO_(2), Al_(2)O_(3), PbO_(2), Tl_(2)O_(3) (b) Write suitablechemcial equationsto show their nature.
Answer» Solution :(a) Neutral oxides : CO : Acidic oxides : `B_(2)O_(3), SiO_(2), CO_(2)` Amphoteric oxides : `Al_(2)O_(3), PbO_(2)` Basicoxide : `Tl_(2)O_(3)` (b) (i) Being acidic `B_(2)O_(3), SiO_(2)` and `CO_(2)` react with ALKALIS to form salts. `UNDERSET("ANHYDRIDE")underset("Boric")(B_(2)O_(3)) + 2NaOH rarr underset("Sod. metaborate")(2NaBO_(2) + H_(2)O) , underset("Silica")(SiO_(2))+2NaOH overset(Delta)rarrunderset(" Sod. silicates ")(Na_(2)SiO_(3))+H_(2)O` `underset(" Carbon dioxide ")(CO_(2)) + 2NaOH rarr underset(" Sod. carbonate ")(Na_(2)CO) + H_(2)O` (ii) Being amphoteric, `Al_(2)O_(3)` and `PbO_(2)` reactwith bothacidsand bases. `underset("Alumina")(Al_(2)O_(3)) + 2NaOHoverset("Fuse")rarr underset(" Sod. meta-aluminate ")(NaAlO_(2)) + H_(2)O, Al_(2)O_(3) + 3H_(2)SO_(4) rarr Al_(2)(SO_(4))_(3) + 3H_(2)O` `underset(" Lead dioxide ")(PbO_(2)) + 2NaOH rarr underset(" Sod. plumbate ")(Na_(2)PbO_(3)) + H_(2)O , 2PbO_(2) + 2H_(2)SO_(4) rarr 2PbSO_(4) +2H_(2)O + O_(2)` (III) Beingbasic, `Tl_(2)O_(3)` dissolvesin acids. `Tl_(2)O_(3) + 6 HCl rarr 2TlCl_(3) + 3H_(2)O`.