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Question

Find the number of sesquioxide(s) from the following:

Al2O3,C3O2,CO2,Pb2O3,B2O3,C12O9

Solution
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A sesquioxide is an oxide containing three atoms of oxygen with two atoms (or radicals) of another element. For example, aluminium oxide (Al2O3) is a sesquioxide.

The number of sesquioxide(s) is 3.

Al2O3,Pb2O3,B2O3 are the sesquioxides.

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