Highest melting point among the following is displayed by

Choose the incorrect statement.

The tendency of forming chloride hydrates of alkaline earth metals is in the order of

$CO_2$ is passed through lime water. Initially,the solution turns milky and then becomes clear upon continued bubbling of $CO_2$. The clear solution is due to the formation of:

Milk of lime is

Which of the following properties of the alkaline earth metals increase from $Be$ to $Ba$?
$(i)$ Atomic radius
$(ii)$ Ionisation energy
$(iii)$ Nuclear charge