Chlorophyll contains

Most reactive among the following is

A gas reacts with CaO and not with NaHCO₃ is

The electrolyte employed in the extraction of sodium by downs electrolysis method is

Sodium is produced by the electrolysis of molten sodium chloride fed continuously into

Ca, Sr and Ba dissolves in liquid ammonia giving a

The ashes of plant contain alkali metals 90% of which is

Milk of lime is

The most homogeneous family in periodic table is