The wire of a flash bulb is made of

The lattice energy (numerical value) of alkali metal chlorides is in the order:

Excess of $Na^{+}$ ions in our system causes:

Alkali metals dissolve in liquid ammonia to give a blue-colored solution if it is dilute. This blue color is due to which of the following?

The correct order of the mobility of the alkali metal ions in aqueous solution is

Which process is associated with the production of sodium carbonate?