Answer:
Explanation:
I ) Oxide that dissolves in water to give a solution of pH greater than 7 - Naâ‚‚O
It is a metallic oxide and therefore basic in nature . It will dissolve in water to give pH more than 7 .
II )
Acidic oxide insoluble in water  - SiO₂ . It reacts with CaO to give CaSiO₃
III ) NOâ‚‚
Acid anhydride : SiO₂  It is anhydride of H₂SiO₃  ( H₂O + SiO₂ )
IV ) No effect on moist paper - Â CO . It is neutral oxide .
V ) Peroxide - Ba Oâ‚‚
VI ) Amphoteric - ZnO
