Question #107026
which of the following is not an acid anhydride CO2 P2O5 Magnesium NO2 CO
Expert's answer
Question: which of the following is not an acid anhydride CO2 P2O5 Magnesium NO2 CO
Answer: Magnesium and CO are not acid anhydrides.
The other substances are definitely acid anhydrides:
CO2 is an anhydride of carbonic acid - H2CO3
P205 is an anhydride of orthophosphoric acid - H3PO4
NO2 is an anhydride of both nitric and nitrous acids - 2NO2+H2O=HNO3+HNO2
