<u>Answer:</u>
<u>For 1:</u> The product is phosphoric acid and the solution is acidic in nature.
<u>For 2:</u> The product is sodium hydroxide and the solution is basic in nature.
<u>For 3:</u> The product is nitric acid and the solution is acidic in nature.
<u>Explanation:</u>
For the given options:
(1): When diphosphorus pentoxide reacts with water, it leads to the formation of phosphoric acid, which makes the solution acidic in nature.
The chemical equation for the reaction follows:
![P_4O_{10}+6H_2O(l)\rightarrow 4H_3PO_4(aq)](https://tex.z-dn.net/?f=P_4O_%7B10%7D%2B6H_2O%28l%29%5Crightarrow%204H_3PO_4%28aq%29)
(2): When disodium oxide reacts with water, it leads to the formation of sodium hydroxide, which makes the solution basic in nature.
The chemical equation for the reaction follows:
![Na_2O+H_2O(l)\rightarrow 2NaOH(aq)](https://tex.z-dn.net/?f=Na_2O%2BH_2O%28l%29%5Crightarrow%202NaOH%28aq%29)
(3): When dinitrogen pentoxide reacts with water, it leads to the formation of nitric acid, which makes the solution acidic in nature.
The chemical equation for the reaction follows:
![3N_2O_5+3H_2O(l)\rightarrow 6HNO_3(aq)](https://tex.z-dn.net/?f=3N_2O_5%2B3H_2O%28l%29%5Crightarrow%206HNO_3%28aq%29)