question_answer 10)

Show by a chemical reaction with water that \[N{{a}_{2}}O\] is a basic oxide and is an acidic oxide.

Answer:

\[N{{a}_{2}}O\]reacts with water and forms a strong base, i.e. sodium hydroxide. \[N{{a}_{2}}O+{{H}_{2}}O\to 2NaOH\] \[\text{C}{{\text{l}}_{\text{2}}}{{\text{O}}_{\text{7}}}\]reacts with water and forms a strong acid, perchloric acid. \[C{{l}_{2}}{{O}_{7}}+{{H}_{2}}O\to 2HCl{{O}_{4}}\] Both the products can be tested qualitatively with litmus paper. \[NaOH\] + Red litmus paper Blue colour \[HCl{{O}_{4}}\] + Blue litmus paper Red colour