Which of the following metals will react with water?

Give brief information on Ionization Enthalpy and Hydration Enthalpy of alkali metal (Group $I$).

Give the preparation,properties,and uses of sodium chloride ($NaCl$ $-$ Rock salt).

Which of the following is $CORRECT$ regarding alkali metals?
$I$. Pure $NaCl$ is hygroscopic
$II$. $(n - 1)d$ subshell is vacant only
$III$. Aqueous $NaHCO_3$ solution is more basic than $Na_2CO_3$ solution
$IV$. Both $Li^{+}$ and $Mg^{2+}$ do not form alums

The disease known as fluorosis is caused by the reaction of excess fluorine in the body with which of the following?

Write the general chemical reaction that shows the dissolution of an alkali metal in liquid ammonia.