The anhydride of carbonic acid is:
CO
CO2
C3O2
None of these
An aqueous solution of carbon dioxide behaves as a weak acid which is due to the formation of carbonic acid.
CO2+H2O⇌H2CO3
This is why CO2 is also known carbonic anhydride.
a list of oxides isgiven: CO2, N2O5, Na2O, N2 O
state
1.The oxide which dissolves in water to form a strongly alkaline solution
2. The acid anhydride of nitric acid
3. The neutral oxide
4. The anhydride of carbonic acid
5. The two oxides that react to form a salt