1.

Which one of the following is most basic

Answer»

<P>`Al_(2)O_(3)`
MgO
`SiO_(2)`
`P_(2)O_(5)`

SOLUTION :`ubrace(MgO)_("Basic") ubrace(Al_(2)O_(3))_("AMPHOTERIC") ubrace(SiO_(2)"" P_(2)O_(5))_("ACIDIC")`
`MgO +H_(2)O to Mg(OH)_(2)` base of alkali


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