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Question

Chemistry Question on p -Block Elements

Identify the correct order of acidic strength of CO2,CuO,CaO,H2OCO_2, CuO, CaO, H_2O

A

CaO<CuO<H20<CO2CaO < CuO < H20 < CO_2

B

H2O<CuO<CaO<CO2H_2O < CuO < CaO < CO_2

C

CaO<H2O<CuO<CO2CaO < H_2O < CuO < CO_2

D

H2O<CO2<CaO<CuOH_2O < CO_2 < CaO < CuO

Answer

CaO<CuO<H20<CO2CaO < CuO < H20 < CO_2

Explanation

Solution

CO2CO_2 is acidic oxide, H2OH_2O is neutral, CaO is strongly basic and CuO is weakly basic. Therefore, order of acid strength is : CaO<CuO<H2O<CO2 \, \, \, \, \, \, CaO < CuO < H_2O < CO_2