Which one of the following will not give a flame test?

Which element among the alkaline earth metals primarily forms covalent compounds?

The correct order of basic strength of oxides of alkaline earth metals is:

Which of the following statement$(s)$ is/are correct?
$(i)$ $LiNO_3$ and $Ba(NO_3)_2$ both will give $NO_2$ on heating.
$(ii)$ $BaSO_4$ is less soluble in water than $CaSO_4$.
$(iii)$ Alkaline earth metals do not dissolve in liquid ammonia.

Give two uses of beryllium and magnesium.

Which colour is developed in the solution when alkaline earth metals are dissolved in liquid ammonia?