Mercury is transported in metal containers made of

$Na$ imparts yellow colour to Bunsen flame because of

Magnesium liberates $H_2$ gas on reaction with

Explain how industrial production of sodium hydroxide is carried out by the Castner-Kellner cell.

Which of the following statements is false for alkali metals?

Which of the following alloys are correctly matched with their uses?
$(i)$ $Li-Mg$ armour plates
$(ii)$ $Cu-Be$ high strength springs
$(iii)$ $Mg-Al$ aircraft construction