1.

Which of the following is not a neutral oxide?A. `Al_(2)O_(3)`B. `CO`C. `N_(2)O`D. `NO`

Answer» Correct Answer - 1
There are some oxides which are neither acidic nor basic. Such oxides which neither combine with acids nor with bases to form salts are known as netural oxides. examples are `CO,NO`,and `N_(2)O`.On the other hand ,`Al_(2)O_(3)` ,is an amphoteric oxide as it reacts with acids as well as bases.
`Al_(2)O_(3)(s)+6HCl(aq)+9H_(2)O(l)rarr2[Al(H_(2)O)_(6)]^(2+)(aq.)=6Cl^(-)(aq.)`
`Al_(2)O_(3)(s)+6NaOH(aq.)+3H_(2)O(l)rarr2Na_(3)[Al(OH)_(6)](aq.)`


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