The metal which can be extracted from all three ores: dolomite,magnesite,and carnallite is:

Which of the following hydrides are ionic?

Alkaline earth metals belong to which group of elements?

Identify correct statements from the following:
$i$. Beryllium oxide is an amphoteric oxide.
$ii$. Group $II$ elements dissolve in liquid ammonia to form deep blue-black solutions.
$iii$. The hydration enthalpy of group $II$ ions decreases from $Be^{2+}$ to $Ba^{2+}$.

Beryllium and magnesium do not give colour to flame whereas other alkaline earth metals do so. Why?

Discuss the trend of the following:
$(i)$ Thermal stability of carbonates of Group $-2$ elements.
$(ii)$ The solubility and the nature of oxides of Group $-2$ elements.