How many of the following are basic oxides? Al_2O_3, CaO, K_2O, MgO, CO_2, Cl_2O_7

JEE Main Chemistry question

How many of the following are basic oxides? , CaO, , MgO, ,

Answer: 3

CaO, and MgO are straightforwardly basic metal oxides. is amphoteric (not

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Question ID VK-147149