A) \[L{{i}_{2}}O\]
B) \[N{{a}_{2}}{{O}_{2}}\]
C) \[Na{{O}_{2}}\]
D) \[N{{a}_{2}}O\]
E) \[BeO\]
Correct Answer: C
Solution :
On hydrolysis, alkali metal oxides give the corresponding metallic hydroxides. \[L{{i}_{2}}O+{{H}_{2}}O\xrightarrow{{}}2LiOH\] \[N{{a}_{2}}O+{{H}_{2}}O\xrightarrow{{}}2NaOH\] The peroxides of alkali metals give the corresponding metallic hydroxide and\[{{H}_{2}}{{O}_{2}}\]. \[N{{a}_{2}}{{O}_{2}}+2{{H}_{2}}O\xrightarrow{{}}2NaOH+{{H}_{2}}{{O}_{2}}\] Whereas, the superoxides of alkali metals give the corresponding metallic hydroxide,\[{{H}_{2}}{{O}_{2}}\] and\[{{O}_{2}}\]. \[2Na{{O}_{2}}+2{{H}_{2}}O\xrightarrow{{}}2NaOH+{{H}_{2}}{{O}_{2}}+{{O}_{2}}\] \[Be{{(OH)}_{2}}\]cannot be prepared by hydrolysis of \[BeO,\]as it is insoluble in water.
You need to login to perform this action.
You will be redirected in
3 sec
