Which of the set of oxides are arranged in the proper order of basic, amphoteric, acidic?
A
SO2,P2O5,CO
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B
BaO,Al2O3,SO2
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C
SiO2,CaO,Al2O3
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D
CO2,Al2O3,CO
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Solution
The correct option is ABaO,Al2O3,SO2 As we move down a group metallic character increases and left to right decreases and the nature of their oxides changes from acidic ⟶ amphoteric ⟶ basic.