$Be$ and $Al$ exhibit many properties which are similar,but the two elements differ in:

Why do beryllium and magnesium not impart colour to the flame in the flame test?

The thermal stability of alkaline earth metal carbonates $MgCO_3$,$CaCO_3$,$BaCO_3$,and $SrCO_3$ decreases as:

What are the products formed in sequence when excess of $CO_{2}$ is passed in slaked lime?

The product obtained on fusion of $BaSO_4$ and $Na_2CO_3$ is

An alkaline earth metal $(M)$ gives a salt with chlorine,which is insoluble in water at room temperature but soluble in boiling water. It also forms an insoluble sulphate whose mixture with a sulphide of a transition metal is called 'lithopone' - a white pigment. Metal $M$ is