p-Block elementsHard
Question
Identify the correct order of acidic strength of CO2, CuO, CaO, H2O.
Options
A.CaO < CuO < H2O < CO2
B.H2O < CuO < CaO < CO2
C.CaO < H2O < CuO < CO2
D.H2O < CO2 CaO < CuO
Solution
On moving L → R across a peCO2 - Acidic oxide, CaO - Basic oxide
CuO - weakest basic oxide, H2O - amphoteric oxide,
thus increasing order of acidic strength is CaO < CuO < H2O < CO2
CuO - weakest basic oxide, H2O - amphoteric oxide,
thus increasing order of acidic strength is CaO < CuO < H2O < CO2
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