1.

The increasing order of acidic nature of Li_2O, BeO,B_2O_3,CuO is :

Answer»

`Li_2Olt BeOltCuOltB_2O_3`
`BeOltCuOltB_2O_3ltLi_2O`
`Li_2Olt CuOltBeOltB_2O_3`
`B_2O_3lt CuOltBeOltLi_2O`

SOLUTION :On MOVING left to right in periodic table, ACIDIC nature of oxide increases.So, METALLIC oxides are BASIC, non-metallic oxides are acidic and BeO is amphoteric.


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