Step-by-step explanation:
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The organic compounds are formed solely by carbon, hydrogen, oxygen, sulfur and nitrogen. It can have fluoride too.
The rest of the elements form inorganic compounds. So now we will analyze each of the given compounds:
C3N2H4: organic
AlBr3: inorganic
C6H5F: organic
H2O2: inorganic
C12H22O11: Organic