Which of the following statement regarding the oxides of alkali and alkaline metals is correct?
The reactivity of K2O towards water is more than that of $N a_{2} O$
The oxides of alkaline earth metals are more basic than those of alkali metals
$M g O$ is used as a refractory material for lining of electric furnaces
The milk of lime and lime water are two different solutions

Question

Which of the following statement regarding the oxides of alkali and alkaline metals is correct?
The reactivity of K2O towards water is more than that of $N a_{2} O$
The oxides of alkaline earth metals are more basic than those of alkali metals
$M g O$ is used as a refractory material for lining of electric furnaces
The milk of lime and lime water are two different solutions

Toppr Admin · Accepted Answer

Milk of lime- Ca-OH-2Lime water is a saturated solution of Ca-OH-2-aq-MgO- It is quite stable and fuses at 2800K hence it is used as a refractory material for lining electric furnaces-The oxides of alkaline earth metals are less basic than those of alkali metals-So- the correct options are A-B-C

Milk of lime: Ca(OH)2Lime water is a saturated solution of Ca(OH)2(aq).MgO: It is quite stable and fuses at 2800K hence it is used as a refractory material for lining electric furnaces.The oxides of alkaline earth metals are less basic than those of alkali metals.So, the correct options are A,B,C